/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */

/* Credenza - Icon canvas item class for icon container.
 *
 * Copyright (C) 2000 Eazel, Inc
 *
 * Author: Andy Hertzfeld <andy@eazel.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include <config.h>
#include <math.h>
#include "credenza-icon-canvas-item.h"

#include <glib/gi18n.h>

#include "credenza-file-utilities.h"
#include "credenza-global-preferences.h"
#include "credenza-icon-private.h"
#include <eel/eel-art-extensions.h>
#include <eel/eel-gdk-extensions.h>
#include <eel/eel-gdk-pixbuf-extensions.h>
#include <eel/eel-glib-extensions.h>
#include <eel/eel-gnome-extensions.h>
#include <eel/eel-graphic-effects.h>
#include <eel/eel-gtk-macros.h>
#include <eel/eel-pango-extensions.h>
#include <eel/eel-string.h>
#include <eel/eel-accessibility.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include <glib/gi18n.h>
#include <eel/eel-canvas-util.h>
#include <atk/atkimage.h>
#include <atk/atkcomponent.h>
#include <atk/atknoopobject.h>
#include <stdio.h>
#include <string.h>

#define EMBLEM_SPACING 2

/* gap between bottom of icon and start of text box */
#define LABEL_OFFSET 1
#define LABEL_LINE_SPACING 0

#define MAX_TEXT_WIDTH_STANDARD 135
#define MAX_TEXT_WIDTH_TIGHTER 80
#define MAX_TEXT_WIDTH_BESIDE 90
#define MAX_TEXT_WIDTH_BESIDE_TOP_TO_BOTTOM 150

/* special text height handling
 * each item has three text height variables:
 *  + text_height: actual height of the displayed (i.e. on-screen) PangoLayout.
 *  + text_height_for_layout: height used in icon grid layout algorithms.
 *       		      “sane amount” of text.
 *   “sane amount“ as of
 *      + hard-coded to three lines in text-below-icon mode.
 *      + unlimited in text-besides-icon mode (see VOODOO-TODO)
 *
 *  This layout height is used by grid layout algorithms, even
 *  though the actually displayed and/or requested text size may be larger
 *  and overlap adjacent icons, if an icon is selected.
 *
 *  + text_height_for_entire_text: height needed to display the entire PangoLayout,
 *    if it wasn't ellipsized.
 */

/* Private part of the CredenzaIconCanvasItem structure. */
struct CredenzaIconCanvasItemDetails {
	/* The image, text, font. */
	double x, y;
	GdkPixbuf *pixbuf;
	GdkPixbuf *rendered_pixbuf;
	GList *emblem_pixbufs;
	char *editable_text;		/* Text that can be modified by a renaming function */
	char *additional_text;		/* Text that cannot be modifed, such as file size, etc. */
	GdkPoint *attach_points;
	int n_attach_points;
	
	/* Size of the text at current font. */
	int text_dx;
	int text_width;

	/* actual size required for rendering the text to display */
	int text_height;
	/* actual size that would be required for rendering the entire text if it wasn't ellipsized */
	int text_height_for_entire_text;
	/* actual size needed for rendering a “sane amount” of text */
	int text_height_for_layout;

	int editable_text_height;

	/* whether the entire text must always be visible. In that case,
	 * text_height_for_layout will always be equal to text_height.
	 * Used for the last line of a line-wise icon layout. */
	guint entire_text : 1;
	
	/* preview state */
	guint is_active : 1;

    	/* Highlight state. */
   	guint is_highlighted_for_selection : 1;
	guint is_highlighted_as_keyboard_focus: 1;
   	guint is_highlighted_for_drop : 1;
	guint is_highlighted_for_clipboard : 1;
	guint show_stretch_handles : 1;
	guint is_prelit : 1;

	guint rendered_is_active : 1;
	guint rendered_is_highlighted_for_selection : 1;
	guint rendered_is_highlighted_for_drop : 1;
	guint rendered_is_highlighted_for_clipboard : 1;
	guint rendered_is_prelit : 1;
	guint rendered_is_focused : 1;
	
	guint is_renaming : 1;
	
	guint bounds_cached : 1;
	
	guint is_visible : 1;

	GdkRectangle embedded_text_rect;
	char *embedded_text;

	/* Cached PangoLayouts. Only used if the icon is visible */
	PangoLayout *editable_text_layout;
	PangoLayout *additional_text_layout;
	PangoLayout *embedded_text_layout;

	/* Cached rectangle in canvas coordinates */
	EelIRect canvas_rect;
	EelIRect text_rect;
	EelIRect emblem_rect;

	EelIRect bounds_cache;
	EelIRect bounds_cache_for_layout;
	EelIRect bounds_cache_for_entire_item;

	/* Accessibility bits */
	GailTextUtil *text_util;
};

/* Object argument IDs. */
enum {
	PROP_0,
	PROP_EDITABLE_TEXT,
	PROP_ADDITIONAL_TEXT,
    	PROP_HIGHLIGHTED_FOR_SELECTION,
    	PROP_HIGHLIGHTED_AS_KEYBOARD_FOCUS,
    	PROP_HIGHLIGHTED_FOR_DROP,
	PROP_HIGHLIGHTED_FOR_CLIPBOARD
};

typedef enum {
	RIGHT_SIDE,
	BOTTOM_SIDE,
	LEFT_SIDE,
	TOP_SIDE
} RectangleSide;

enum {
	ACTION_OPEN,
	ACTION_MENU,
	LAST_ACTION
};

typedef struct {
        char *action_descriptions[LAST_ACTION];
	char *image_description;
	char *description;
} CredenzaIconCanvasItemAccessiblePrivate;

typedef struct {
	CredenzaIconCanvasItem *item;
	gint action_number;
} CredenzaIconCanvasItemAccessibleActionContext;

typedef struct {
	CredenzaIconCanvasItem *icon_item;
	EelIRect icon_rect;
	RectangleSide side;
	int position;
	int index;
	GList *emblem;
} EmblemLayout;

static int click_policy_auto_value;

static void credenza_icon_canvas_item_text_interface_init (EelAccessibleTextIface *iface);

G_DEFINE_TYPE_WITH_CODE (CredenzaIconCanvasItem, credenza_icon_canvas_item, EEL_TYPE_CANVAS_ITEM,
			 G_IMPLEMENT_INTERFACE (EEL_TYPE_ACCESSIBLE_TEXT,
						credenza_icon_canvas_item_text_interface_init));

/* private */
static void     draw_label_text                      (CredenzaIconCanvasItem        *item,
						      GdkDrawable                   *drawable,
						      gboolean                       create_mask,
						      EelIRect                       icon_rect);
static void     measure_label_text                   (CredenzaIconCanvasItem        *item);
static void     get_icon_canvas_rectangle            (CredenzaIconCanvasItem        *item,
						      EelIRect                      *rect);
static void     emblem_layout_reset                  (EmblemLayout                  *layout,
						      CredenzaIconCanvasItem        *icon_item,
						      EelIRect                       icon_rect,
						      gboolean			     is_rtl);
static gboolean emblem_layout_next                   (EmblemLayout                  *layout,
						      GdkPixbuf                    **emblem_pixbuf,
						      EelIRect                      *emblem_rect,
						      gboolean			     is_rtl);
static void     draw_pixbuf                          (GdkPixbuf                     *pixbuf,
						      GdkDrawable                   *drawable,
						      int                            x,
						      int                            y);
static PangoLayout *get_label_layout                 (PangoLayout                  **layout,
						      CredenzaIconCanvasItem        *item,
						      const char                    *text);
static void     draw_label_layout                    (CredenzaIconCanvasItem        *item,
						      GdkDrawable                   *drawable,
						      PangoLayout                   *layout,
						      gboolean                       highlight,
						      GdkColor                      *label_color,
						      int                            x,
						      int                            y,
						      GdkGC                         *gc);
static gboolean hit_test_stretch_handle              (CredenzaIconCanvasItem        *item,
						      EelIRect                       canvas_rect,
						      GtkCornerType *corner);
static void      draw_embedded_text                  (CredenzaIconCanvasItem        *icon_item,
						      GdkDrawable                   *drawable,
						      int                            x,
						      int                            y);

static void       credenza_icon_canvas_item_ensure_bounds_up_to_date (CredenzaIconCanvasItem *icon_item);


static gpointer accessible_parent_class = NULL;

static GQuark accessible_private_data_quark = 0;

static const char *credenza_icon_canvas_item_accessible_action_names[] = {
        "open",
        "menu",
        NULL
};

static const char *credenza_icon_canvas_item_accessible_action_descriptions[] = {
        "Open item",
        "Popup context menu",
        NULL
};


/* Object initialization function for the icon item. */
static void
credenza_icon_canvas_item_init (CredenzaIconCanvasItem *icon_item)
{
	static gboolean setup_auto_enums = FALSE;

	if (!setup_auto_enums) {
		eel_preferences_add_auto_enum
			(CREDENZA_PREFERENCES_CLICK_POLICY,
			 &click_policy_auto_value);
		setup_auto_enums = TRUE;
	}

	icon_item->details = G_TYPE_INSTANCE_GET_PRIVATE ((icon_item), CREDENZA_TYPE_ICON_CANVAS_ITEM, CredenzaIconCanvasItemDetails);
	credenza_icon_canvas_item_invalidate_label_size (icon_item);
}

static void
credenza_icon_canvas_item_finalize (GObject *object)
{
	CredenzaIconCanvasItemDetails *details;

	g_assert (CREDENZA_IS_ICON_CANVAS_ITEM (object));

	details = CREDENZA_ICON_CANVAS_ITEM (object)->details;

	if (details->pixbuf != NULL) {
		g_object_unref (details->pixbuf);
	}
	
	if (details->text_util != NULL) {
		g_object_unref (details->text_util);
	}

	eel_gdk_pixbuf_list_free (details->emblem_pixbufs);
	g_free (details->editable_text);
	g_free (details->additional_text);
	g_free (details->attach_points);
	
	if (details->rendered_pixbuf != NULL) {
		g_object_unref (details->rendered_pixbuf);
	}

	if (details->editable_text_layout != NULL) {
		g_object_unref (details->editable_text_layout);
	}

	if (details->additional_text_layout != NULL) {
		g_object_unref (details->additional_text_layout);
	}

	if (details->embedded_text_layout != NULL) {
		g_object_unref (details->embedded_text_layout);
	}

	g_free (details->embedded_text);

	G_OBJECT_CLASS (credenza_icon_canvas_item_parent_class)->finalize (object);
}
 
/* Currently we require pixbufs in this format (for hit testing).
 * Perhaps gdk-pixbuf will be changed so it can do the hit testing
 * and we won't have this requirement any more.
 */
static gboolean
pixbuf_is_acceptable (GdkPixbuf *pixbuf)
{
	return gdk_pixbuf_get_colorspace (pixbuf) == GDK_COLORSPACE_RGB
		&& ((!gdk_pixbuf_get_has_alpha (pixbuf)
		     && gdk_pixbuf_get_n_channels (pixbuf) == 3)
		    || (gdk_pixbuf_get_has_alpha (pixbuf)
			&& gdk_pixbuf_get_n_channels (pixbuf) == 4))
		&& gdk_pixbuf_get_bits_per_sample (pixbuf) == 8;
}

static void
credenza_icon_canvas_item_invalidate_bounds_cache (CredenzaIconCanvasItem *item)
{
	item->details->bounds_cached = FALSE;
}

/* invalidate the text width and height cached in the item details. */
void
credenza_icon_canvas_item_invalidate_label_size (CredenzaIconCanvasItem *item)
{
	if (item->details->editable_text_layout != NULL) {
		pango_layout_context_changed (item->details->editable_text_layout);
	}
	if (item->details->additional_text_layout != NULL) {
		pango_layout_context_changed (item->details->additional_text_layout);
	}
	if (item->details->embedded_text_layout != NULL) {
		pango_layout_context_changed (item->details->embedded_text_layout);
	}
	credenza_icon_canvas_item_invalidate_bounds_cache (item);
	item->details->text_width = -1;
	item->details->text_height = -1;
	item->details->text_height_for_layout = -1;
	item->details->text_height_for_entire_text = -1;
	item->details->editable_text_height = -1;
}

/* Set property handler for the icon item. */
static void
credenza_icon_canvas_item_set_property (GObject        *object,
					guint           property_id,
					const GValue   *value,
					GParamSpec     *pspec)
{
	CredenzaIconCanvasItem *item;
	CredenzaIconCanvasItemDetails *details;

	item = CREDENZA_ICON_CANVAS_ITEM (object);
	details = item->details;

	switch (property_id) {

	case PROP_EDITABLE_TEXT:
		if (eel_strcmp (details->editable_text,
				g_value_get_string (value)) == 0) {
			return;
		}

		g_free (details->editable_text);
		details->editable_text = g_strdup (g_value_get_string (value));
		if (details->text_util) {
			AtkObject *accessible;

			gail_text_util_text_setup (details->text_util,
						   details->editable_text);
			accessible = eel_accessibility_get_atk_object (item); 
			g_object_notify (G_OBJECT(accessible), "accessible-name");
		}
		
		credenza_icon_canvas_item_invalidate_label_size (item);
		if (details->editable_text_layout) {
			g_object_unref (details->editable_text_layout);
			details->editable_text_layout = NULL;
		}
		break;

	case PROP_ADDITIONAL_TEXT:
		if (eel_strcmp (details->additional_text,
				g_value_get_string (value)) == 0) {
			return;
		}

		g_free (details->additional_text);
		details->additional_text = g_strdup (g_value_get_string (value));
		
		credenza_icon_canvas_item_invalidate_label_size (item);		
		if (details->additional_text_layout) {
			g_object_unref (details->additional_text_layout);
			details->additional_text_layout = NULL;
		}
		break;

	case PROP_HIGHLIGHTED_FOR_SELECTION:
		if (!details->is_highlighted_for_selection == !g_value_get_boolean (value)) {
			return;
		}
		details->is_highlighted_for_selection = g_value_get_boolean (value);
		credenza_icon_canvas_item_invalidate_label_size (item);
		break;
         
        case PROP_HIGHLIGHTED_AS_KEYBOARD_FOCUS:
		if (!details->is_highlighted_as_keyboard_focus == !g_value_get_boolean (value)) {
			return;
		}
		details->is_highlighted_as_keyboard_focus = g_value_get_boolean (value);

		if (details->is_highlighted_as_keyboard_focus) {
			AtkObject *atk_object = eel_accessibility_for_object (object);
			atk_focus_tracker_notify (atk_object);
		}
		break;
		
        case PROP_HIGHLIGHTED_FOR_DROP:
		if (!details->is_highlighted_for_drop == !g_value_get_boolean (value)) {
			return;
		}
		details->is_highlighted_for_drop = g_value_get_boolean (value);
		break;

	case PROP_HIGHLIGHTED_FOR_CLIPBOARD:
		if (!details->is_highlighted_for_clipboard == !g_value_get_boolean (value)) {
			return;
		}
		details->is_highlighted_for_clipboard = g_value_get_boolean (value);
		break;

	default:
		g_warning ("credenza_icons_view_item_item_set_arg on unknown argument");
		return;
	}
	
	eel_canvas_item_request_update (EEL_CANVAS_ITEM (object));
}

/* Get property handler for the icon item */
static void
credenza_icon_canvas_item_get_property (GObject        *object,
					guint           property_id,
					GValue         *value,
					GParamSpec     *pspec)
{
	CredenzaIconCanvasItemDetails *details;
	
	details = CREDENZA_ICON_CANVAS_ITEM (object)->details;
	
	switch (property_id) {
		
	case PROP_EDITABLE_TEXT:
		g_value_set_string (value, details->editable_text);
		break;

	case PROP_ADDITIONAL_TEXT:
		g_value_set_string (value, details->additional_text);
		break;
		
        case PROP_HIGHLIGHTED_FOR_SELECTION:
		g_value_set_boolean (value, details->is_highlighted_for_selection);
                break;
		
        case PROP_HIGHLIGHTED_AS_KEYBOARD_FOCUS:
		g_value_set_boolean (value, details->is_highlighted_as_keyboard_focus);
                break;
		
        case PROP_HIGHLIGHTED_FOR_DROP:
		g_value_set_boolean (value, details->is_highlighted_for_drop);
                break;

	case PROP_HIGHLIGHTED_FOR_CLIPBOARD:
		g_value_set_boolean (value, details->is_highlighted_for_clipboard);
                break;

        default:
		g_warning ("invalid property %d", property_id);
		break;
	}
}
      
GdkPixmap *
credenza_icon_canvas_item_get_image (CredenzaIconCanvasItem *item,
				     GdkBitmap **mask,
				     GdkColormap *colormap)
{
	GdkPixmap *pixmap;
	EelCanvas *canvas;
	GdkScreen *screen;
	GdkGC *gc;
	int width, height;
	int item_offset_x, item_offset_y;
	EelIRect icon_rect;
	EelIRect emblem_rect;
	GdkPixbuf *pixbuf;
	GdkPixbuf *emblem_pixbuf;
	EmblemLayout emblem_layout;
	double item_x, item_y;
	gboolean is_rtl;
	cairo_t *cr;
	
	g_return_val_if_fail (CREDENZA_IS_ICON_CANVAS_ITEM (item), NULL);

	canvas = EEL_CANVAS_ITEM (item)->canvas;
	screen = gdk_colormap_get_screen (colormap);

	/* Assume we're updated so canvas item data is right */

	/* Calculate the offset from the top-left corner of the
	   new image to the item position (where the pixmap is placed) */
	eel_canvas_world_to_window (canvas,
				    item->details->x, item->details->y,
				    &item_x, &item_y);

	item_offset_x = item_x - EEL_CANVAS_ITEM (item)->x1;
	item_offset_y = item_y - EEL_CANVAS_ITEM (item)->y1;

	/* Calculate the width of the item */
	width = EEL_CANVAS_ITEM (item)->x2 - EEL_CANVAS_ITEM (item)->x1;
	height = EEL_CANVAS_ITEM (item)->y2 - EEL_CANVAS_ITEM (item)->y1;
	
	pixmap = gdk_pixmap_new (gdk_screen_get_root_window (screen),
				 width,	height,
				 gdk_visual_get_depth (gdk_colormap_get_visual (colormap)));
	gdk_drawable_set_colormap (GDK_DRAWABLE (pixmap), colormap);

	pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
				 TRUE,
				 gdk_pixbuf_get_bits_per_sample (item->details->pixbuf),
				 width, height);
	gdk_pixbuf_fill (pixbuf, 0x00000000);

	gdk_pixbuf_composite (item->details->pixbuf, pixbuf,
			      item_offset_x, item_offset_y,
			      gdk_pixbuf_get_width (item->details->pixbuf),
			      gdk_pixbuf_get_height (item->details->pixbuf),
			      item_offset_x, item_offset_y, 1.0, 1.0,
			      GDK_INTERP_BILINEAR, 255);

	icon_rect.x0 = item_offset_x;
	icon_rect.y0 = item_offset_y;
	icon_rect.x1 = item_offset_x + gdk_pixbuf_get_width (item->details->pixbuf);
	icon_rect.y1 = item_offset_y + gdk_pixbuf_get_height (item->details->pixbuf);


	is_rtl = credenza_icon_container_is_layout_rtl (CREDENZA_ICON_CONTAINER (canvas));

	emblem_layout_reset (&emblem_layout, item, icon_rect, is_rtl);
	while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect, is_rtl)) {
		gdk_pixbuf_composite (emblem_pixbuf, pixbuf,
				      emblem_rect.x0, emblem_rect.y0,
				      gdk_pixbuf_get_width (emblem_pixbuf),
				      gdk_pixbuf_get_height (emblem_pixbuf),
				      emblem_rect.x0, emblem_rect.y0,
				      1.0, 1.0,
				      GDK_INTERP_BILINEAR, 255);
	}

	/* clear the pixmap */
	cr = gdk_cairo_create (pixmap);
	cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
	cairo_paint (cr);
	cairo_destroy (cr);
	
	gc = gdk_gc_new (pixmap);
	gdk_draw_pixbuf (pixmap, gc, pixbuf, 
			 0, 0, 0, 0,
			 gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
			 GDK_RGB_DITHER_NORMAL,
			 0, 0);
	g_object_unref (gc);

	*mask = gdk_pixmap_new (gdk_screen_get_root_window (screen),
				width, height,
				1);
	gc = gdk_gc_new (*mask);
	gdk_draw_rectangle (*mask, gc,
			    TRUE,
			    0, 0,
			    width, height);
	g_object_unref (gc);
	  
	gdk_pixbuf_render_threshold_alpha (pixbuf, *mask,
					   0, 0, 0, 0,
					   gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
					   128);
	
	draw_embedded_text (item, GDK_DRAWABLE (pixmap),
			    item_offset_x, item_offset_y);

	draw_label_text (item, GDK_DRAWABLE (pixmap), FALSE, icon_rect);
	draw_label_text (item, GDK_DRAWABLE (*mask), TRUE, icon_rect);

	g_object_unref (pixbuf);

	return pixmap;
}

void
credenza_icon_canvas_item_set_image (CredenzaIconCanvasItem *item,
				     GdkPixbuf *image)
{
	CredenzaIconCanvasItemDetails *details;	
	
	g_return_if_fail (CREDENZA_IS_ICON_CANVAS_ITEM (item));
	g_return_if_fail (image == NULL || pixbuf_is_acceptable (image));

	details = item->details;	
	if (details->pixbuf == image) {
		return;
	}

	if (image != NULL) {
		g_object_ref (image);
	}
	if (details->pixbuf != NULL) {
		g_object_unref (details->pixbuf);
	}
	if (details->rendered_pixbuf != NULL) {
		g_object_unref (details->rendered_pixbuf);
		details->rendered_pixbuf = NULL;
	}

	details->pixbuf = image;
			
	credenza_icon_canvas_item_invalidate_bounds_cache (item);
	eel_canvas_item_request_update (EEL_CANVAS_ITEM (item));	
}

void
credenza_icon_canvas_item_set_emblems (CredenzaIconCanvasItem *item,
				       GList *emblem_pixbufs)
{
	GList *p;

	g_return_if_fail (CREDENZA_IS_ICON_CANVAS_ITEM (item));

	g_assert (item->details->emblem_pixbufs != emblem_pixbufs || emblem_pixbufs == NULL);

	/* The case where the emblems are identical is fairly common,
	 * so lets take the time to check for it.
	 */
	if (eel_g_list_equal (item->details->emblem_pixbufs, emblem_pixbufs)) {
		return;
	}

	/* Check if they are acceptable. */
	for (p = emblem_pixbufs; p != NULL; p = p->next) {
		g_return_if_fail (pixbuf_is_acceptable (p->data));
	}
	
	/* Take in the new list of emblems. */
	eel_gdk_pixbuf_list_ref (emblem_pixbufs);
	eel_gdk_pixbuf_list_free (item->details->emblem_pixbufs);
	item->details->emblem_pixbufs = g_list_copy (emblem_pixbufs);

	credenza_icon_canvas_item_invalidate_bounds_cache (item);
	eel_canvas_item_request_update (EEL_CANVAS_ITEM (item));
}

void 
credenza_icon_canvas_item_set_attach_points (CredenzaIconCanvasItem *item,
					     GdkPoint *attach_points,
					     int n_attach_points)
{
	g_free (item->details->attach_points);
	item->details->attach_points = NULL;
	item->details->n_attach_points = 0;

	if (attach_points != NULL && n_attach_points != 0) {
		item->details->attach_points = g_memdup (attach_points, n_attach_points * sizeof (GdkPoint));
		item->details->n_attach_points = n_attach_points;
	}
	
	credenza_icon_canvas_item_invalidate_bounds_cache (item);
}

void
credenza_icon_canvas_item_set_embedded_text_rect (CredenzaIconCanvasItem       *item,
						  const GdkRectangle           *text_rect)
{
	item->details->embedded_text_rect = *text_rect;

	credenza_icon_canvas_item_invalidate_bounds_cache (item);
	eel_canvas_item_request_update (EEL_CANVAS_ITEM (item));
}

void
credenza_icon_canvas_item_set_embedded_text (CredenzaIconCanvasItem       *item,
					     const char                   *text)
{
	g_free (item->details->embedded_text);
	item->details->embedded_text = g_strdup (text);

	if (item->details->embedded_text_layout != NULL) {
		if (text != NULL) {
			pango_layout_set_text (item->details->embedded_text_layout, text, -1);
		} else {
			pango_layout_set_text (item->details->embedded_text_layout, "", -1);
		}
	}

	eel_canvas_item_request_update (EEL_CANVAS_ITEM (item));
}


/* Recomputes the bounding box of a icon canvas item.
 * This is a generic implementation that could be used for any canvas item
 * class, it has no assumptions about how the item is used.
 */
static void
recompute_bounding_box (CredenzaIconCanvasItem *icon_item,
			double i2w_dx, double i2w_dy)
{
	/* The bounds stored in the item is the same as what get_bounds
	 * returns, except it's in canvas coordinates instead of the item's
	 * parent's coordinates.
	 */

	EelCanvasItem *item;
	EelDPoint top_left, bottom_right;

	item = EEL_CANVAS_ITEM (icon_item);

	eel_canvas_item_get_bounds (item,
				    &top_left.x, &top_left.y,
				    &bottom_right.x, &bottom_right.y);

	top_left.x += i2w_dx;
	top_left.y += i2w_dy;
	bottom_right.x += i2w_dx;
	bottom_right.y += i2w_dy;
	eel_canvas_w2c_d (item->canvas,
			  top_left.x, top_left.y,
			  &item->x1, &item->y1);
	eel_canvas_w2c_d (item->canvas,
			  bottom_right.x, bottom_right.y,
			  &item->x2, &item->y2);
}

static EelIRect
compute_text_rectangle (const CredenzaIconCanvasItem *item,
			EelIRect icon_rectangle,
			gboolean canvas_coords,
			CredenzaIconCanvasItemBoundsUsage usage)
{
	EelIRect text_rectangle;
	double pixels_per_unit;
	double text_width, text_height, text_height_for_layout, text_height_for_entire_text, real_text_height, text_dx;

	pixels_per_unit = EEL_CANVAS_ITEM (item)->canvas->pixels_per_unit;
	if (canvas_coords) {
		text_width = item->details->text_width;
		text_height = item->details->text_height;
		text_height_for_layout = item->details->text_height_for_layout;
		text_height_for_entire_text = item->details->text_height_for_entire_text;
		text_dx = item->details->text_dx;
	} else {
		text_width = item->details->text_width / pixels_per_unit;
		text_height = item->details->text_height / pixels_per_unit;
		text_height_for_layout = item->details->text_height_for_layout / pixels_per_unit;
		text_height_for_entire_text = item->details->text_height_for_entire_text / pixels_per_unit;
		text_dx = item->details->text_dx / pixels_per_unit;
	}
	
	if (CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas)->details->label_position == CREDENZA_ICON_LABEL_POSITION_BESIDE) {
		if (!credenza_icon_container_is_layout_rtl (CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas))) {
                	text_rectangle.x0 = icon_rectangle.x1;
                	text_rectangle.x1 = text_rectangle.x0 + text_dx + text_width;
		} else {
                	text_rectangle.x1 = icon_rectangle.x0;
                	text_rectangle.x0 = text_rectangle.x1 - text_dx - text_width;
		}

		/* VOODOO-TODO */
#if 0
		if (for_layout) {
			/* in this case, we should be more smart and calculate the size according to the maximum
			 * number of lines fitting next to the icon. However, this requires a more complex layout logic.
			 * It would mean that when measuring the label, the icon dimensions must be known already,
			 * and we
			 *   1. start with an unlimited layout
			 *   2. measure how many lines of this layout fit next to the icon
			 *   3. limit the number of lines to the given number of fitting lines
			 */
			real_text_height = VOODOO();
		} else {
#endif
			real_text_height = text_height_for_entire_text;
#if 0
		}
#endif

                text_rectangle.y0 = (icon_rectangle.y0 + icon_rectangle.y1) / 2- (int) real_text_height / 2;
                text_rectangle.y1 = text_rectangle.y0 + real_text_height;
	} else {
                text_rectangle.x0 = (icon_rectangle.x0 + icon_rectangle.x1) / 2 - (int) text_width / 2;
                text_rectangle.y0 = icon_rectangle.y1;
                text_rectangle.x1 = text_rectangle.x0 + text_width;

		if (usage == BOUNDS_USAGE_FOR_LAYOUT) {
			real_text_height = text_height_for_layout;
		} else if (usage == BOUNDS_USAGE_FOR_ENTIRE_ITEM) {
			real_text_height = text_height_for_entire_text;
		} else if (usage == BOUNDS_USAGE_FOR_DISPLAY) {
			real_text_height = text_height;
		} else {
			g_assert_not_reached ();
		}

		text_rectangle.y1 = text_rectangle.y0 + real_text_height + LABEL_OFFSET / pixels_per_unit;
        }

	return text_rectangle;
}

static EelIRect
get_current_canvas_bounds (EelCanvasItem *item)
{
	EelIRect bounds;

	g_assert (EEL_IS_CANVAS_ITEM (item));

	bounds.x0 = item->x1;
	bounds.y0 = item->y1;
	bounds.x1 = item->x2;
	bounds.y1 = item->y2;

	return bounds;
}

void
credenza_icon_canvas_item_update_bounds (CredenzaIconCanvasItem *item,
					 double i2w_dx, double i2w_dy)
{
	EelIRect before, after, emblem_rect;
	EmblemLayout emblem_layout;
	EelCanvasItem *canvas_item;
	GdkPixbuf *emblem_pixbuf;
	gboolean is_rtl;

	canvas_item = EEL_CANVAS_ITEM (item);
	
	/* Compute new bounds. */
	before = get_current_canvas_bounds (canvas_item);
	recompute_bounding_box (item, i2w_dx, i2w_dy);
	after = get_current_canvas_bounds (canvas_item);

	/* If the bounds didn't change, we are done. */
	if (eel_irect_equal (before, after)) {
		return;
	}
	
	is_rtl = credenza_icon_container_is_layout_rtl (CREDENZA_ICON_CONTAINER (canvas_item->canvas));

	/* Update canvas and text rect cache */
	get_icon_canvas_rectangle (item, &item->details->canvas_rect);
	item->details->text_rect = compute_text_rectangle (item, item->details->canvas_rect,
							   TRUE, BOUNDS_USAGE_FOR_DISPLAY);
	
	/* Update emblem rect cache */
	item->details->emblem_rect.x0 = 0;
	item->details->emblem_rect.x1 = 0;
	item->details->emblem_rect.y0 = 0;
	item->details->emblem_rect.y1 = 0;
	emblem_layout_reset (&emblem_layout, item, item->details->canvas_rect, is_rtl);
	while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect, is_rtl)) {
		eel_irect_union (&item->details->emblem_rect, &item->details->emblem_rect, &emblem_rect);
	}

	/* queue a redraw. */
	eel_canvas_request_redraw (canvas_item->canvas,
				   before.x0, before.y0,
				   before.x1 + 1, before.y1 + 1);
}

/* Update handler for the icon canvas item. */
static void
credenza_icon_canvas_item_update (EelCanvasItem *item,
				  double i2w_dx, double i2w_dy,
				  gint flags)
{
	credenza_icon_canvas_item_update_bounds (CREDENZA_ICON_CANVAS_ITEM (item), i2w_dx, i2w_dy);

	eel_canvas_item_request_redraw (EEL_CANVAS_ITEM (item));

	EEL_CANVAS_ITEM_CLASS (credenza_icon_canvas_item_parent_class)->update (item, i2w_dx, i2w_dy, flags);
}

/* Rendering */
static gboolean
in_single_click_mode (void)
{
	return click_policy_auto_value == CREDENZA_CLICK_POLICY_SINGLE;
}


/* Utility routine to create a rectangle with rounded corners.
 * This could possibly move to Eel as a general purpose routine. 
 */
static void
make_round_rect (cairo_t *cr,
		 double x, 
    		 double y, 
		 double width, 
		 double height,
		 double radius)
{
	double cx, cy;
	
	width -= 2 * radius;
	height -= 2 * radius;
	
	cairo_move_to (cr, x + radius, y);
	
	cairo_rel_line_to (cr, width, 0.0);
	
	cairo_get_current_point (cr, &cx, &cy);
	cairo_arc (cr, cx, cy + radius, radius, 3.0 * G_PI_2, 0);

	cairo_rel_line_to (cr, 0.0, height);

	cairo_get_current_point (cr, &cx, &cy);
	cairo_arc (cr, cx - radius, cy, radius, 0, G_PI_2);

	cairo_rel_line_to (cr, - width, 0.0);
	
	cairo_get_current_point (cr, &cx, &cy);
	cairo_arc (cr, cx, cy - radius, radius, G_PI_2, G_PI);

	cairo_rel_line_to (cr, 0.0, -height);

	cairo_get_current_point (cr, &cx, &cy);
	cairo_arc (cr, cx + radius, cy, radius, G_PI, 3.0 * G_PI_2);

	cairo_close_path (cr);
}

static void
draw_frame (CredenzaIconCanvasItem *item,
	    GdkDrawable *drawable,
	    guint color,
	    gboolean create_mask,
	    int x, 
	    int y,
	    int width,
	    int height)
{
	CredenzaIconContainer *container;
	cairo_t *cr;

	container = CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas);

	/* Get a cairo context */
	cr = gdk_cairo_create (drawable);	
	
	/* Set the rounded rect clip region. Magic rounding value taken
	 * from old code. 
	 */
	make_round_rect (cr, x, y, width, height, 5);
	
	if (create_mask) {
		/* Dunno how to do this with cairo...
		 * It used to threshold the rendering so that the
		 * bitmask didn't show white where alpha < 0.5
		 */
	}

	cairo_set_source_rgba (cr,
			       EEL_RGBA_COLOR_GET_R (color) / 255.0,
			       EEL_RGBA_COLOR_GET_G (color) / 255.0,
			       EEL_RGBA_COLOR_GET_B (color) / 255.0,
			       EEL_RGBA_COLOR_GET_A (color) / 255.0);
	
	/* Paint into drawable now that we have set up the color and opacity */	
	cairo_fill (cr);
	
	/* Clean up now that drawing is complete */
	cairo_destroy (cr);		 
}

/* Keep these for a bit while we work on performance of draw_or_measure_label_text. */
/*
  #define PERFORMANCE_TEST_DRAW_DISABLE
  #define PERFORMANCE_TEST_MEASURE_DISABLE
*/

/* This gets the size of the layout from the position of the layout.
 * This means that if the layout is right aligned we get the full width
 * of the layout, not just the width of the text snippet on the right side
 */
static void
layout_get_full_size (PangoLayout *layout,
		      int         *width,
		      int         *height,
		      int         *dx)
{
	PangoRectangle logical_rect;
	int the_width, total_width;
	
	pango_layout_get_extents (layout, NULL, &logical_rect);
	the_width = (logical_rect.width + PANGO_SCALE / 2) / PANGO_SCALE;
	total_width = (logical_rect.x + logical_rect.width + PANGO_SCALE / 2) / PANGO_SCALE;

	if (width != NULL) {
		*width = the_width;
	}

	if (height != NULL) {
		*height = (logical_rect.height + PANGO_SCALE / 2) / PANGO_SCALE;
	}

	if (dx != NULL) {
		*dx = total_width - the_width;
	}
}

static void
layout_get_size_for_layout (PangoLayout *layout,
			    int          max_layout_line_count,
			    int          height_for_entire_text,
			    int         *height_for_layout)
{
	PangoLayoutIter *iter;
	PangoRectangle logical_rect;
	int i;

	/* only use the first max_layout_line_count lines for the gridded auto layout */
	if (pango_layout_get_line_count (layout) <= max_layout_line_count) {
		*height_for_layout = height_for_entire_text;
	} else {
		*height_for_layout = 0;
		iter = pango_layout_get_iter (layout);
		/* VOODOO-TODO, determine number of lines based on the icon size for text besides icon.
		 * cf. compute_text_rectangle() */
		for (i = 0; i < max_layout_line_count; i++) {
			pango_layout_iter_get_line_extents (iter, NULL, &logical_rect);
			*height_for_layout += (logical_rect.height + PANGO_SCALE / 2) / PANGO_SCALE;

			if (!pango_layout_iter_next_line (iter)) {
				break;
			}

			*height_for_layout += pango_layout_get_spacing (layout);
		}
		pango_layout_iter_free (iter);
	}
}

#define IS_COMPACT_VIEW(container) \
        ((container->details->layout_mode == CREDENZA_ICON_LAYOUT_T_B_L_R || \
	  container->details->layout_mode == CREDENZA_ICON_LAYOUT_T_B_R_L) && \
	 container->details->label_position == CREDENZA_ICON_LABEL_POSITION_BESIDE)

#define TEXT_BACK_PADDING_X 4
#define TEXT_BACK_PADDING_Y 1

static void
prepare_pango_layout_width (CredenzaIconCanvasItem *item,
			    PangoLayout *layout)
{
	if (credenza_icon_canvas_item_get_max_text_width (item) < 0) {
		pango_layout_set_width (layout, -1);
	} else {
		pango_layout_set_width (layout, floor (credenza_icon_canvas_item_get_max_text_width (item)) * PANGO_SCALE);
		pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
	}
}

static void
prepare_pango_layout_for_measure_entire_text (CredenzaIconCanvasItem *item,
					      PangoLayout *layout)
{
	CredenzaIconContainer *container;

	prepare_pango_layout_width (item, layout);

	container = CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas);

	if (IS_COMPACT_VIEW (container)) {
		pango_layout_set_height (layout, -1);
	} else {
		pango_layout_set_height (layout, G_MININT);
	}
}

static void
prepare_pango_layout_for_draw (CredenzaIconCanvasItem *item,
			       PangoLayout *layout)
{
	CredenzaIconCanvasItemDetails *details;
	CredenzaIconContainer *container;
	gboolean needs_highlight;

	prepare_pango_layout_width (item, layout);

	container = CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas);
	details = item->details;

	needs_highlight = details->is_highlighted_for_selection || details->is_highlighted_for_drop;

	if (IS_COMPACT_VIEW (container)) {
		pango_layout_set_height (layout, -1);
	} else if (needs_highlight ||
		   details->is_prelit ||
		   details->is_highlighted_as_keyboard_focus ||
		   details->entire_text ||
		   container->details->label_position == CREDENZA_ICON_LABEL_POSITION_BESIDE) {
		/* VOODOO-TODO, cf. compute_text_rectangle() */
		pango_layout_set_height (layout, G_MININT);
	} else {
		/* TODO? we might save some resources, when the re-layout is not neccessary in case
		 * the layout height already fits into max. layout lines. But pango should figure this
		 * out itself (which it doesn't ATM).
		 */
		pango_layout_set_height (layout,
					 credenza_icon_container_get_max_layout_lines_for_pango (container));
	}
}

static void
measure_label_text (CredenzaIconCanvasItem *item)
{
	CredenzaIconCanvasItemDetails *details;
	CredenzaIconContainer *container;
	gint editable_height, editable_height_for_layout, editable_height_for_entire_text, editable_width, editable_dx;
	gint additional_height, additional_width, additional_dx;
	EelCanvasItem *canvas_item;
	PangoLayout *editable_layout;
	PangoLayout *additional_layout;
	gboolean have_editable, have_additional, needs_highlight;
	int max_text_width;

	/* check to see if the cached values are still valid; if so, there's
	 * no work necessary
	 */
	
	if (item->details->text_width >= 0 && item->details->text_height >= 0) {
		return;
	}

	details = item->details;
	needs_highlight = details->is_highlighted_for_selection || details->is_highlighted_for_drop;

	have_editable = details->editable_text != NULL && details->editable_text[0] != '\0';
	have_additional = details->additional_text != NULL && details->additional_text[0] != '\0';

	/* No font or no text, then do no work. */
	if (!have_editable && !have_additional) {
		details->text_height = 0;
		details->text_height_for_layout = 0;
		details->text_height_for_entire_text = 0;
		details->text_width = 0;			
		return;
	}

#ifdef PERFORMANCE_TEST_MEASURE_DISABLE
	/* fake out the width */
	details->text_width = 80;
	details->text_height = 20;
	details->text_height_for_layout = 20;
	details->text_height_for_entire_text = 20;
	return;
#endif

	canvas_item = EEL_CANVAS_ITEM (item);

	editable_width = 0;
	editable_height = 0;
	editable_height_for_layout = 0;
	editable_height_for_entire_text = 0;
	editable_dx = 0;
	additional_width = 0;
	additional_height = 0;
	additional_dx = 0;

	max_text_width = floor (credenza_icon_canvas_item_get_max_text_width (item));

	container = CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas);	
	editable_layout = NULL;
	additional_layout = NULL;

	if (have_editable) {
		/* first, measure required text height: editable_height_for_entire_text
		 * then, measure text height applicable for layout: editable_height_for_layout
		 * next, measure actually displayed height: editable_height
		 */
		editable_layout = get_label_layout (&details->editable_text_layout, item, details->editable_text);

		prepare_pango_layout_for_measure_entire_text (item, editable_layout);
		layout_get_full_size (editable_layout,
				      NULL,
				      &editable_height_for_entire_text,
				      NULL);
		layout_get_size_for_layout (editable_layout,
					    credenza_icon_container_get_max_layout_lines (container),
					    editable_height_for_entire_text,
					    &editable_height_for_layout);

		prepare_pango_layout_for_draw (item, editable_layout);
		layout_get_full_size (editable_layout,
				      &editable_width,
				      &editable_height,
				      &editable_dx);
	}

	if (have_additional) {
		additional_layout = get_label_layout (&details->additional_text_layout, item, details->additional_text);
		prepare_pango_layout_for_draw (item, additional_layout);
		layout_get_full_size (additional_layout,
				      &additional_width, &additional_height, &additional_dx);
	}

	details->editable_text_height = editable_height;

	if (editable_width > additional_width) {
		details->text_width = editable_width;
		details->text_dx = editable_dx;
	} else {
		details->text_width = additional_width;
		details->text_dx = additional_dx;
	}

	if (have_additional) {
		details->text_height = editable_height + LABEL_LINE_SPACING + additional_height;
		details->text_height_for_layout = editable_height_for_layout + LABEL_LINE_SPACING + additional_height;
		details->text_height_for_entire_text = editable_height_for_entire_text + LABEL_LINE_SPACING + additional_height;
	} else {
		details->text_height = editable_height;
		details->text_height_for_layout = editable_height_for_layout;
		details->text_height_for_entire_text = editable_height_for_entire_text;
	}

	/* add some extra space for highlighting even when we don't highlight so things won't move */
	
	/* extra slop for nicer highlighting */
	details->text_height += TEXT_BACK_PADDING_Y*2;
	details->text_height_for_layout += TEXT_BACK_PADDING_Y*2;
	details->text_height_for_entire_text += TEXT_BACK_PADDING_Y*2;
	details->editable_text_height += TEXT_BACK_PADDING_Y*2;

	/* extra to make it look nicer */
	details->text_width += TEXT_BACK_PADDING_X*2;

	if (editable_layout) {
		g_object_unref (editable_layout);
	}

	if (additional_layout) {
		g_object_unref (additional_layout);
	}
}

static void
draw_label_text (CredenzaIconCanvasItem *item,
		 GdkDrawable *drawable,
		 gboolean create_mask,
		 EelIRect icon_rect)
{
	EelCanvasItem *canvas_item;
	CredenzaIconCanvasItemDetails *details;
	CredenzaIconContainer *container;
	PangoLayout *editable_layout;
	PangoLayout *additional_layout;
	GdkColor *label_color;
	GdkGC *gc;
	gboolean have_editable, have_additional;
	gboolean needs_frame, needs_highlight, prelight_label, is_rtl_label_beside;
	EelIRect text_rect;
	int x;
	int max_text_width;

#ifdef PERFORMANCE_TEST_DRAW_DISABLE
	return;
#endif

	gc = NULL;

	canvas_item = EEL_CANVAS_ITEM (item);
	details = item->details;

	measure_label_text (item);
	if (details->text_height == 0 ||
	    details->text_width == 0) {
		return;
	}

	container = CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas);

	text_rect = compute_text_rectangle (item, icon_rect, TRUE, BOUNDS_USAGE_FOR_DISPLAY);

	needs_highlight = details->is_highlighted_for_selection || details->is_highlighted_for_drop;
	is_rtl_label_beside = credenza_icon_container_is_layout_rtl (container) &&
			      container->details->label_position == CREDENZA_ICON_LABEL_POSITION_BESIDE;

	editable_layout = NULL;
	additional_layout = NULL;

	have_editable = details->editable_text != NULL && details->editable_text[0] != '\0';
	have_additional = details->additional_text != NULL && details->additional_text[0] != '\0';
	g_assert (have_editable || have_additional);

	max_text_width = floor (credenza_icon_canvas_item_get_max_text_width (item));

	/* if the icon is highlighted, do some set-up */
	if (needs_highlight && !details->is_renaming) {
		draw_frame (item,
			    drawable,
			    gtk_widget_has_focus (GTK_WIDGET (container)) ? container->details->highlight_color_rgba : container->details->active_color_rgba,
			    create_mask,
			    is_rtl_label_beside ? text_rect.x0 + item->details->text_dx : text_rect.x0,
			    text_rect.y0,
			    is_rtl_label_beside ? text_rect.x1 - text_rect.x0 - item->details->text_dx : text_rect.x1 - text_rect.x0,
			    text_rect.y1 - text_rect.y0);
	} else if (!needs_highlight && !details->is_renaming &&
		   (details->is_prelit ||
		    details->is_highlighted_as_keyboard_focus)) {
		/* clear the underlying icons, where the text or overlaps them. */
		gdk_window_clear_area (gtk_layout_get_bin_window (&EEL_CANVAS (container)->layout),
				       text_rect.x0,
				       text_rect.y0,
				       text_rect.x1 - text_rect.x0,
				       text_rect.y1 - text_rect.y0);
	}

	if (container->details->label_position == CREDENZA_ICON_LABEL_POSITION_BESIDE) {
		x = text_rect.x0 + 2;
	} else {
		x = text_rect.x0 + ((text_rect.x1 - text_rect.x0) - max_text_width) / 2;
	}
	
	if (have_editable) {
		editable_layout = get_label_layout (&item->details->editable_text_layout, item, item->details->editable_text);
		prepare_pango_layout_for_draw (item, editable_layout);

		gtk_widget_style_get (GTK_WIDGET (container),
				      "frame_text", &needs_frame,
				      "activate_prelight_icon_label", &prelight_label,
				      NULL);
		if (needs_frame && !needs_highlight && details->text_width > 0 && details->text_height > 0) {
			if (!(prelight_label && item->details->is_prelit)) {
				draw_frame (item, 
					    drawable,
					    container->details->normal_color_rgba,
					    create_mask,
					    text_rect.x0,
					    text_rect.y0,
					    text_rect.x1 - text_rect.x0,
					    text_rect.y1 - text_rect.y0);
			} else {
				draw_frame (item, 
					    drawable,
					    container->details->prelight_color_rgba,
					    create_mask,
					    text_rect.x0,
					    text_rect.y0,
					    text_rect.x1 - text_rect.x0,
					    text_rect.y1 - text_rect.y0);
			}
		}
		
		gc = credenza_icon_container_get_label_color_and_gc
			(CREDENZA_ICON_CONTAINER (canvas_item->canvas),
			 &label_color, TRUE, needs_highlight,
			 prelight_label & item->details->is_prelit);

		draw_label_layout (item, drawable,
				   editable_layout, needs_highlight,
				   label_color,
				   x,
				   text_rect.y0 + TEXT_BACK_PADDING_Y, gc);
	}

	if (have_additional) {
		additional_layout = get_label_layout (&item->details->additional_text_layout, item, item->details->additional_text);
		prepare_pango_layout_for_draw (item, additional_layout);

		gc = credenza_icon_container_get_label_color_and_gc
			(CREDENZA_ICON_CONTAINER (canvas_item->canvas),
			 &label_color, FALSE, needs_highlight,
			 FALSE);
		
		draw_label_layout (item, drawable,
				   additional_layout, needs_highlight,
				   label_color,
				   x,
				   text_rect.y0 + details->editable_text_height + LABEL_LINE_SPACING + TEXT_BACK_PADDING_Y, gc);
	}

	if (!create_mask && item->details->is_highlighted_as_keyboard_focus) {
		gtk_paint_focus (gtk_widget_get_style (GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas)),
				 drawable,
				 needs_highlight ? GTK_STATE_SELECTED : GTK_STATE_NORMAL,
				 NULL,
				 GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas),
				 "icon-container",
				 text_rect.x0,
				 text_rect.y0,
				 text_rect.x1 - text_rect.x0,
				 text_rect.y1 - text_rect.y0);
	}

	if (editable_layout != NULL) {
		g_object_unref (editable_layout);
	}
	
	if (additional_layout != NULL) {
		g_object_unref (additional_layout);
	}
}

void
credenza_icon_canvas_item_set_is_visible (CredenzaIconCanvasItem       *item,
					  gboolean                      visible)
{
	if (item->details->is_visible == visible)
		return;
	
	item->details->is_visible = visible;

	if (!visible) {
		credenza_icon_canvas_item_invalidate_label (item);
	}
}

void
credenza_icon_canvas_item_invalidate_label (CredenzaIconCanvasItem     *item)
{
	credenza_icon_canvas_item_invalidate_label_size (item);

	if (item->details->editable_text_layout) {
		g_object_unref (item->details->editable_text_layout);
		item->details->editable_text_layout = NULL;
	}

	if (item->details->additional_text_layout) {
		g_object_unref (item->details->additional_text_layout);
		item->details->additional_text_layout = NULL;
	}

	if (item->details->embedded_text_layout) {
		g_object_unref (item->details->embedded_text_layout);
		item->details->embedded_text_layout = NULL;
	}
}


static GdkPixbuf *
get_knob_pixbuf (void)
{
	GdkPixbuf *knob_pixbuf;
	char *knob_filename;

	knob_pixbuf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
						"stock-credenza-knob",
						8, 0, NULL);
	if (!knob_pixbuf) {
		knob_filename = credenza_pixmap_file ("knob.png");
		knob_pixbuf = gdk_pixbuf_new_from_file (knob_filename, NULL);
		g_free (knob_filename);
	}

	return knob_pixbuf;
}

static void
draw_stretch_handles (CredenzaIconCanvasItem *item, GdkDrawable *drawable,
		      const EelIRect *rect)
{
	GtkWidget *widget;
	GdkGC *gc;
	GdkPixbuf *knob_pixbuf;
	GdkBitmap *stipple;
	int knob_width, knob_height;
	GtkStyle *style;
	
	if (!item->details->show_stretch_handles) {
		return;
	}

	widget = GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas);
	style = gtk_widget_get_style (widget);

	gc = gdk_gc_new (drawable);
	knob_pixbuf = get_knob_pixbuf ();
	knob_width = gdk_pixbuf_get_width (knob_pixbuf);
	knob_height = gdk_pixbuf_get_height (knob_pixbuf);

	stipple = eel_stipple_bitmap_for_screen (
			gdk_drawable_get_screen (GDK_DRAWABLE (drawable)));
	
	/* first draw the box */
	gdk_gc_set_rgb_fg_color (gc, &style->white);
	gdk_draw_rectangle
		(drawable, gc, FALSE,
			    rect->x0,
			    rect->y0,
			    rect->x1 - rect->x0 - 1,
			    rect->y1 - rect->y0 - 1);

	gdk_gc_set_rgb_fg_color (gc, &style->black);
	gdk_gc_set_stipple (gc, stipple);
	gdk_gc_set_fill (gc, GDK_STIPPLED);
	gdk_draw_rectangle
		(drawable, gc, FALSE,
		 rect->x0,
		 rect->y0,
		 rect->x1 - rect->x0 - 1,
		 rect->y1 - rect->y0 - 1);
	
	/* draw the stretch handles themselves */
	
	draw_pixbuf (knob_pixbuf, drawable, rect->x0, rect->y0);
	draw_pixbuf (knob_pixbuf, drawable, rect->x0, rect->y1 - knob_height);
	draw_pixbuf (knob_pixbuf, drawable, rect->x1 - knob_width, rect->y0);
	draw_pixbuf (knob_pixbuf, drawable, rect->x1 - knob_width, rect->y1 - knob_height);
	g_object_unref (knob_pixbuf);	

	g_object_unref (gc);
}

static void
emblem_layout_reset (EmblemLayout *layout, CredenzaIconCanvasItem *icon_item, EelIRect icon_rect, gboolean is_rtl)
{
	layout->icon_item = icon_item;
	layout->icon_rect = icon_rect;
	layout->side = is_rtl ? LEFT_SIDE : RIGHT_SIDE;
	layout->position = 0;
	layout->index = 0;
	layout->emblem = icon_item->details->emblem_pixbufs;
}

static gboolean
emblem_layout_next (EmblemLayout *layout,
		    GdkPixbuf **emblem_pixbuf,
		    EelIRect *emblem_rect,
		    gboolean is_rtl)
{
	GdkPixbuf *pixbuf;
	int width, height, x, y;
	GdkPoint *attach_points;
	
	/* Check if we have layed out all of the pixbufs. */
	if (layout->emblem == NULL) {
		return FALSE;
	}

	/* Get the pixbuf. */
	pixbuf = layout->emblem->data;
	width = gdk_pixbuf_get_width (pixbuf);
	height = gdk_pixbuf_get_height (pixbuf);


	/* Advance to the next emblem. */
	layout->emblem = layout->emblem->next;

	attach_points = layout->icon_item->details->attach_points;
	if (attach_points != NULL) {
		if (layout->index >= layout->icon_item->details->n_attach_points) {
			return FALSE;
		}
		
		x = layout->icon_rect.x0 + attach_points[layout->index].x;
		y = layout->icon_rect.y0 + attach_points[layout->index].y;

		layout->index += 1;
		
		/* Return the rectangle and pixbuf. */
		*emblem_pixbuf = pixbuf;
		emblem_rect->x0 = x - width / 2;
		emblem_rect->y0 = y - height / 2;
		emblem_rect->x1 = emblem_rect->x0 + width;
		emblem_rect->y1 = emblem_rect->y0 + height;

		return TRUE;

	}
	
	for (;;) {

		/* Find the side to lay out along. */
		switch (layout->side) {
		case RIGHT_SIDE:
			x = layout->icon_rect.x1;
			y = is_rtl ? layout->icon_rect.y1 : layout->icon_rect.y0;
			break;
		case BOTTOM_SIDE:
			x = is_rtl ? layout->icon_rect.x0 : layout->icon_rect.x1;
			y = layout->icon_rect.y1;
			break;
		case LEFT_SIDE:
			x = layout->icon_rect.x0;
			y = is_rtl ? layout->icon_rect.y0 : layout->icon_rect.y1;
			break;
		case TOP_SIDE:
			x = is_rtl ? layout->icon_rect.x1 : layout->icon_rect.x0;
			y = layout->icon_rect.y0;
			break;
		default:
			g_assert_not_reached ();
			x = 0;
			y = 0;
			break;
		}
		if (layout->position != 0) {
			switch (layout->side) {
			case RIGHT_SIDE:
				y += (is_rtl ? -1 : 1) * (layout->position + height / 2);
				break;
			case BOTTOM_SIDE:
				x += (is_rtl ? 1 : -1 ) * (layout->position + width / 2);
				break;
			case LEFT_SIDE:
				y += (is_rtl ? 1 : -1) * (layout->position + height / 2);
				break;
			case TOP_SIDE:
				x += (is_rtl ? -1 : 1) * (layout->position + width / 2);
				break;
			}
		}
		
		/* Check to see if emblem fits in current side. */
		if (x >= layout->icon_rect.x0 && x <= layout->icon_rect.x1
		    && y >= layout->icon_rect.y0 && y <= layout->icon_rect.y1) {

			/* It fits. */

			/* Advance along the side. */
			switch (layout->side) {
			case RIGHT_SIDE:
			case LEFT_SIDE:
				layout->position += height + EMBLEM_SPACING;
				break;
			case BOTTOM_SIDE:
			case TOP_SIDE:
				layout->position += width + EMBLEM_SPACING;
				break;
			}

			/* Return the rectangle and pixbuf. */
			*emblem_pixbuf = pixbuf;
			emblem_rect->x0 = x - width / 2;
			emblem_rect->y0 = y - height / 2;
			emblem_rect->x1 = emblem_rect->x0 + width;
			emblem_rect->y1 = emblem_rect->y0 + height;

			return TRUE;
		}
	
		/* It doesn't fit, so move to the next side. */
		switch (layout->side) {
		case RIGHT_SIDE:
			layout->side = is_rtl ? TOP_SIDE : BOTTOM_SIDE;
			break;
		case BOTTOM_SIDE:
			layout->side = is_rtl ? RIGHT_SIDE : LEFT_SIDE;
			break;
		case LEFT_SIDE:
			layout->side = is_rtl ? BOTTOM_SIDE : TOP_SIDE;
			break;
		case TOP_SIDE:
		default:
			return FALSE;
		}
		layout->position = 0;
	}
}

static void
draw_pixbuf (GdkPixbuf *pixbuf, GdkDrawable *drawable, int x, int y)
{
	/* FIXME bugzilla.gnome.org 40703: 
	 * Dither would be better if we passed dither values. 
	 */
	gdk_draw_pixbuf (drawable, NULL, pixbuf, 0, 0, x, y,
			 gdk_pixbuf_get_width (pixbuf),
			 gdk_pixbuf_get_height (pixbuf),
			 GDK_RGB_DITHER_NORMAL, 0, 0);
}

/* shared code to highlight or dim the passed-in pixbuf */
static GdkPixbuf *
real_map_pixbuf (CredenzaIconCanvasItem *icon_item)
{
	EelCanvas *canvas;
	char *audio_filename;
	CredenzaIconContainer *container;
	GdkPixbuf *temp_pixbuf, *old_pixbuf, *audio_pixbuf;
	int emblem_size;
	guint render_mode, saturation, brightness, lighten;
	
	temp_pixbuf = icon_item->details->pixbuf;
	canvas = EEL_CANVAS_ITEM(icon_item)->canvas;
	container = CREDENZA_ICON_CONTAINER (canvas);

	g_object_ref (temp_pixbuf);

	if (icon_item->details->is_prelit ||
	    icon_item->details->is_highlighted_for_clipboard) {
		old_pixbuf = temp_pixbuf;

		gtk_widget_style_get (GTK_WIDGET (container),
			      "prelight_icon_render_mode", &render_mode,
			      "prelight_icon_saturation", &saturation,
			      "prelight_icon_brightness", &brightness,
			      "prelight_icon_lighten", &lighten,
			      NULL);

		if (render_mode > 0 || saturation < 255 || brightness < 255) {
			temp_pixbuf = eel_gdk_pixbuf_render (temp_pixbuf,
					render_mode,
					saturation,
					brightness,
					lighten,
					container->details->prelight_icon_color_rgba);
			g_object_unref (old_pixbuf);
       	}



		/* FIXME bugzilla.gnome.org 42471: This hard-wired image is inappropriate to
		 * this level of code, which shouldn't know that the
		 * preview is audio, nor should it have an icon
		 * hard-wired in.
		 */

		/* if the icon is currently being previewed, superimpose an image to indicate that */
		/* audio is the only kind of previewing right now, so this code isn't as general as it could be */
		if (icon_item->details->is_active) {
			emblem_size = credenza_icon_get_emblem_size_for_icon_size (gdk_pixbuf_get_width (temp_pixbuf));
			/* Load the audio symbol. */
			audio_filename = credenza_pixmap_file ("audio.svg");
			if (audio_filename != NULL) {
				audio_pixbuf = gdk_pixbuf_new_from_file_at_scale (audio_filename,
										  emblem_size, emblem_size,
										  TRUE,
										  NULL);
			} else {
				audio_pixbuf = NULL;
			}
			
			/* Composite it onto the icon. */
			if (audio_pixbuf != NULL) {
				gdk_pixbuf_composite
					(audio_pixbuf,
					 temp_pixbuf,
					 0, 0,
					 gdk_pixbuf_get_width (audio_pixbuf),
					 gdk_pixbuf_get_height (audio_pixbuf),
					 0, 0,
					 1.0, 1.0,
					 GDK_INTERP_BILINEAR, 0xFF);
				
				g_object_unref (audio_pixbuf);
			}
			
			g_free (audio_filename);
		}
	}

	if (icon_item->details->is_highlighted_for_selection
	    || icon_item->details->is_highlighted_for_drop) {
		guint color;

		old_pixbuf = temp_pixbuf;

		color =  gtk_widget_has_focus (GTK_WIDGET (canvas)) ? CREDENZA_ICON_CONTAINER (canvas)->details->highlight_color_rgba : CREDENZA_ICON_CONTAINER (canvas)->details->active_color_rgba;

		temp_pixbuf = eel_create_colorized_pixbuf (temp_pixbuf,
							   EEL_RGBA_COLOR_GET_R (color),
							   EEL_RGBA_COLOR_GET_G (color),
							   EEL_RGBA_COLOR_GET_B (color));
							   
		g_object_unref (old_pixbuf);
	} 

	if (!icon_item->details->is_active
			&& !icon_item->details->is_prelit
			&& !icon_item->details->is_highlighted_for_selection
			&& !icon_item->details->is_highlighted_for_drop) {
		old_pixbuf = temp_pixbuf;

		gtk_widget_style_get (GTK_WIDGET (container),
			      "normal_icon_render_mode", &render_mode,
			      "normal_icon_saturation", &saturation,
			      "normal_icon_brightness", &brightness,
			      "normal_icon_lighten", &lighten,
			      NULL);
		if (render_mode > 0 || saturation < 255 || brightness < 255) {
			/* if theme requests colorization */
			temp_pixbuf = eel_gdk_pixbuf_render (temp_pixbuf,
					    render_mode,
					    saturation,
					    brightness,
					    lighten,
					    container->details->normal_icon_color_rgba);
			g_object_unref (old_pixbuf);
		}
	}
	
	return temp_pixbuf;
}

static GdkPixbuf *
map_pixbuf (CredenzaIconCanvasItem *icon_item)
{
	if (!(icon_item->details->rendered_pixbuf != NULL
	      && icon_item->details->rendered_is_active == icon_item->details->is_active
	      && icon_item->details->rendered_is_prelit == icon_item->details->is_prelit
	      && icon_item->details->rendered_is_highlighted_for_selection == icon_item->details->is_highlighted_for_selection
	      && icon_item->details->rendered_is_highlighted_for_drop == icon_item->details->is_highlighted_for_drop
	      && icon_item->details->rendered_is_highlighted_for_clipboard == icon_item->details->is_highlighted_for_clipboard
	      && (icon_item->details->is_highlighted_for_selection && icon_item->details->rendered_is_focused == gtk_widget_has_focus (GTK_WIDGET (EEL_CANVAS_ITEM (icon_item)->canvas))))) {
		if (icon_item->details->rendered_pixbuf != NULL) {
			g_object_unref (icon_item->details->rendered_pixbuf);
		}
		icon_item->details->rendered_pixbuf = real_map_pixbuf (icon_item);
		icon_item->details->rendered_is_active = icon_item->details->is_active;
		icon_item->details->rendered_is_prelit = icon_item->details->is_prelit;
		icon_item->details->rendered_is_highlighted_for_selection = icon_item->details->is_highlighted_for_selection;
		icon_item->details->rendered_is_highlighted_for_drop = icon_item->details->is_highlighted_for_drop;
	        icon_item->details->rendered_is_highlighted_for_clipboard = icon_item->details->is_highlighted_for_clipboard;
		icon_item->details->rendered_is_focused = gtk_widget_has_focus (GTK_WIDGET (EEL_CANVAS_ITEM (icon_item)->canvas));
	}

	g_object_ref (icon_item->details->rendered_pixbuf);

	return icon_item->details->rendered_pixbuf;
}

static void
draw_embedded_text (CredenzaIconCanvasItem *item,
		    GdkDrawable *drawable,
		    int x, int y)
{
	GdkGC *gc;
	GdkRectangle clip_rect;
	PangoLayout *layout;
	PangoContext *context;
	PangoFontDescription *desc;
	
	if (item->details->embedded_text == NULL ||
	    item->details->embedded_text_rect.width == 0 ||
	    item->details->embedded_text_rect.height == 0) {
		return;
	}

	if (item->details->embedded_text_layout != NULL) {
		layout = g_object_ref (item->details->embedded_text_layout);
	} else {
		context = gtk_widget_get_pango_context (GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas));
		layout = pango_layout_new (context);
		pango_layout_set_text (layout, item->details->embedded_text, -1);
		
		desc = pango_font_description_from_string ("monospace 6");
		pango_layout_set_font_description (layout, desc);
		pango_font_description_free (desc);

		if (item->details->is_visible) {
			item->details->embedded_text_layout = g_object_ref (layout);
		}
	}
	
	gc = gdk_gc_new (drawable);

	clip_rect.x = x + item->details->embedded_text_rect.x;
	clip_rect.y = y + item->details->embedded_text_rect.y;
	clip_rect.width = item->details->embedded_text_rect.width;
	clip_rect.height = item->details->embedded_text_rect.height;
	
	gdk_gc_set_clip_rectangle  (gc, &clip_rect);

	gdk_draw_layout (drawable, gc,
			 x + item->details->embedded_text_rect.x,
			 y + item->details->embedded_text_rect.y,
			layout);
	
	g_object_unref (gc);
	g_object_unref (layout);
}

/* Draw the icon item for non-anti-aliased mode. */
static void
credenza_icon_canvas_item_draw (EelCanvasItem *item, GdkDrawable *drawable,
				GdkEventExpose *expose)
{
	CredenzaIconCanvasItem *icon_item;
	CredenzaIconCanvasItemDetails *details;
	EelIRect icon_rect, emblem_rect;
	EmblemLayout emblem_layout;
	GdkPixbuf *emblem_pixbuf, *temp_pixbuf;
	GdkRectangle draw_rect, pixbuf_rect;
	gboolean is_rtl;
			
	icon_item = CREDENZA_ICON_CANVAS_ITEM (item);
	details = icon_item->details;

        /* Draw the pixbuf. */
     	if (details->pixbuf == NULL) {
		return;
	}

	icon_rect = icon_item->details->canvas_rect;
	
	/* if the pre-lit or selection flag is set, make a pre-lit or darkened pixbuf and draw that instead */
	/* and colorize normal pixbuf if rc wants that */
	temp_pixbuf = map_pixbuf (icon_item);
	pixbuf_rect.x = icon_rect.x0;
	pixbuf_rect.y = icon_rect.y0;
	pixbuf_rect.width = gdk_pixbuf_get_width (temp_pixbuf);
	pixbuf_rect.height = gdk_pixbuf_get_height (temp_pixbuf);
	if (gdk_rectangle_intersect (&(expose->area), &pixbuf_rect, &draw_rect)) {
		gdk_draw_pixbuf (drawable,
				 NULL,
				 temp_pixbuf,
				 draw_rect.x - pixbuf_rect.x,
				 draw_rect.y - pixbuf_rect.y,
				 draw_rect.x,
				 draw_rect.y,
				 draw_rect.width,
				 draw_rect.height,
				 GDK_RGB_DITHER_NORMAL,
				 0,0);
	}
	g_object_unref (temp_pixbuf);

	draw_embedded_text (icon_item, drawable,  icon_rect.x0, icon_rect.y0);
	
	is_rtl = credenza_icon_container_is_layout_rtl (CREDENZA_ICON_CONTAINER (item->canvas));

	/* Draw the emblem pixbufs. */
	emblem_layout_reset (&emblem_layout, icon_item, icon_rect, is_rtl);
	while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect, is_rtl)) {
		draw_pixbuf (emblem_pixbuf, drawable, emblem_rect.x0, emblem_rect.y0);
	}
	
	/* Draw stretching handles (if necessary). */
	draw_stretch_handles (icon_item, drawable, &icon_rect);
	
	/* Draw the label text. */
	draw_label_text (icon_item, drawable, FALSE, icon_rect);
}

#define ZERO_WIDTH_SPACE "\xE2\x80\x8B"

#define ZERO_OR_THREE_DIGITS(p) \
	(!g_ascii_isdigit (*p) || \
	 (g_ascii_isdigit (*(p+1)) && \
	  g_ascii_isdigit (*(p+2))))


static PangoLayout *
create_label_layout (CredenzaIconCanvasItem *item,
		     const char *text)
{
	PangoLayout *layout;
	PangoContext *context;
	PangoFontDescription *desc;
	CredenzaIconContainer *container;
	EelCanvasItem *canvas_item;
	GString *str;
	char *zeroified_text;
	const char *p;

	canvas_item = EEL_CANVAS_ITEM (item);

	container = CREDENZA_ICON_CONTAINER (canvas_item->canvas);
	context = gtk_widget_get_pango_context (GTK_WIDGET (canvas_item->canvas));
	layout = pango_layout_new (context);
	
	zeroified_text = NULL;

	if (text != NULL) {
		str = g_string_new (NULL);

		for (p = text; *p != '\0'; p++) {
			str = g_string_append_c (str, *p);

			if (*p == '_' || *p == '-' || (*p == '.' && ZERO_OR_THREE_DIGITS (p+1))) {
				/* Ensure that we allow to break after '_' or '.' characters,
				 * if they are not likely to be part of a version information, to
				 * not break wrapping of foobar-0.0.1.
				 * Wrap before IPs and long numbers, though. */
				str = g_string_append (str, ZERO_WIDTH_SPACE);
			}
		}

		zeroified_text = g_string_free (str, FALSE);
	}

	pango_layout_set_text (layout, zeroified_text, -1);
	pango_layout_set_auto_dir (layout, FALSE);
	
	if (container->details->label_position == CREDENZA_ICON_LABEL_POSITION_BESIDE) {
		if (!credenza_icon_container_is_layout_rtl (container)) {
			pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT);
		} else {
			pango_layout_set_alignment (layout, PANGO_ALIGN_RIGHT);
		}
	} else {
		pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
	}

	pango_layout_set_spacing (layout, LABEL_LINE_SPACING);
	pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);

	/* Create a font description */
	if (container->details->font) {
		desc = pango_font_description_from_string (container->details->font);
	} else {
		desc = pango_font_description_copy (pango_context_get_font_description (context));
		pango_font_description_set_size (desc,
						 pango_font_description_get_size (desc) +
						 container->details->font_size_table [container->details->zoom_level]);
	}
	pango_layout_set_font_description (layout, desc);
	pango_font_description_free (desc);
	g_free (zeroified_text);
	
	return layout;
}

static PangoLayout *
get_label_layout (PangoLayout **layout_cache,
		  CredenzaIconCanvasItem *item,
		  const char *text)
{
	PangoLayout *layout;

	if (*layout_cache != NULL) {
		return g_object_ref (*layout_cache);
	}

	layout = create_label_layout (item, text);

	if (item->details->is_visible) {
		*layout_cache = g_object_ref (layout);
	}
	
	return layout;
}

static void
draw_label_layout (CredenzaIconCanvasItem *item,
		   GdkDrawable *drawable,
		   PangoLayout *layout,
		   gboolean highlight,
		   GdkColor *label_color,
		   int x,
		   int y,
		   GdkGC *gc)
{
	if (drawable == NULL) {
		return;
	}

	if (item->details->is_renaming) {
		return;
	}

	if (!highlight && (CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas)->details->use_drop_shadows)) {
		/* draw a drop shadow */
		eel_gdk_draw_layout_with_drop_shadow (drawable, gc,
						      label_color,
						      &gtk_widget_get_style (GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas))->black,
						      x, y,
						      layout);
	} else {
		gdk_draw_layout (drawable, gc,
				 x, y,
				 layout);
	}
}

/* handle events */

static int
credenza_icon_canvas_item_event (EelCanvasItem *item, GdkEvent *event)
{
	CredenzaIconCanvasItem *icon_item;
	GdkCursor *cursor;

	icon_item = CREDENZA_ICON_CANVAS_ITEM (item);

	switch (event->type) {
	case GDK_ENTER_NOTIFY:
		if (!icon_item->details->is_prelit) {
			icon_item->details->is_prelit = TRUE;
			credenza_icon_canvas_item_invalidate_label_size (icon_item);
			eel_canvas_item_request_update (item);
			eel_canvas_item_send_behind (item,
						     CREDENZA_ICON_CONTAINER (item->canvas)->details->rubberband_info.selection_rectangle);

			/* show a hand cursor */
			if (in_single_click_mode ()) {
				cursor = gdk_cursor_new_for_display (gdk_display_get_default(),
								     GDK_HAND2);
				gdk_window_set_cursor (((GdkEventAny *)event)->window, cursor);
				gdk_cursor_unref (cursor);
			}

			/* FIXME bugzilla.gnome.org 42473: 
			 * We should emit our own signal here,
			 * not one from the container; it could hook
			 * up to that signal and emit one of its
			 * own. Doing it this way hard-codes what
			 * "user_data" is. Also, the two signals
			 * should be separate. The "unpreview" signal
			 * does not have a return value.
			 */
			icon_item->details->is_active = credenza_icon_container_emit_preview_signal
				(CREDENZA_ICON_CONTAINER (item->canvas),
				 CREDENZA_ICON_CANVAS_ITEM (item)->user_data,
				 TRUE);
		}
		return TRUE;
		
	case GDK_LEAVE_NOTIFY:
		if (icon_item->details->is_prelit 
		    || icon_item->details->is_highlighted_for_drop) {
			/* When leaving, turn of the prelight state and the
			 * higlighted for drop. The latter gets turned on
			 * by the drag&drop motion callback.
			 */
			/* FIXME bugzilla.gnome.org 42473: 
			 * We should emit our own signal here,
			 * not one from the containe; it could hook up
			 * to that signal and emit one of its
			 * ownr. Doing it this way hard-codes what
			 * "user_data" is. Also, the two signals
			 * should be separate. The "unpreview" signal
			 * does not have a return value.
			 */
			credenza_icon_container_emit_preview_signal
				(CREDENZA_ICON_CONTAINER (item->canvas),
				 CREDENZA_ICON_CANVAS_ITEM (item)->user_data,
				 FALSE);			
			icon_item->details->is_prelit = FALSE;
			icon_item->details->is_active = 0;			
			icon_item->details->is_highlighted_for_drop = FALSE;
			credenza_icon_canvas_item_invalidate_label_size (icon_item);
			eel_canvas_item_request_update (item);

			/* show default cursor */
			gdk_window_set_cursor (((GdkEventAny *)event)->window, NULL);
		}
		return TRUE;
		
	default:
		/* Don't eat up other events; icon container might use them. */
		return FALSE;
	}
}

static gboolean
hit_test_pixbuf (GdkPixbuf *pixbuf, EelIRect pixbuf_location, EelIRect probe_rect)
{
	EelIRect relative_rect, pixbuf_rect;
	int x, y;
	guint8 *pixel;
	
	/* You can get here without a pixbuf in some strange cases. */
	if (pixbuf == NULL) {
		return FALSE;
	}
	
	/* Check to see if it's within the rectangle at all. */
	relative_rect.x0 = probe_rect.x0 - pixbuf_location.x0;
	relative_rect.y0 = probe_rect.y0 - pixbuf_location.y0;
	relative_rect.x1 = probe_rect.x1 - pixbuf_location.x0;
	relative_rect.y1 = probe_rect.y1 - pixbuf_location.y0;
	pixbuf_rect.x0 = 0;
	pixbuf_rect.y0 = 0;
	pixbuf_rect.x1 = gdk_pixbuf_get_width (pixbuf);
	pixbuf_rect.y1 = gdk_pixbuf_get_height (pixbuf);
	eel_irect_intersect (&relative_rect, &relative_rect, &pixbuf_rect);
	if (eel_irect_is_empty (&relative_rect)) {
		return FALSE;
	}

	/* If there's no alpha channel, it's opaque and we have a hit. */
	if (!gdk_pixbuf_get_has_alpha (pixbuf)) {
		return TRUE;
	}
	g_assert (gdk_pixbuf_get_n_channels (pixbuf) == 4);
	
	/* Check the alpha channel of the pixel to see if we have a hit. */
	for (x = relative_rect.x0; x < relative_rect.x1; x++) {
		for (y = relative_rect.y0; y < relative_rect.y1; y++) {
			pixel = gdk_pixbuf_get_pixels (pixbuf)
				+ y * gdk_pixbuf_get_rowstride (pixbuf)
				+ x * 4;
			if (pixel[3] > 1) {
				return TRUE;
			}
		}
	}
	return FALSE;
}

static gboolean
hit_test (CredenzaIconCanvasItem *icon_item, EelIRect canvas_rect)
{
	CredenzaIconCanvasItemDetails *details;
	EelIRect emblem_rect;
	EmblemLayout emblem_layout;
	GdkPixbuf *emblem_pixbuf;
	gboolean is_rtl;
	
	details = icon_item->details;
	
	/* Quick check to see if the rect hits the icon, text or emblems at all. */
	if (!eel_irect_hits_irect (icon_item->details->canvas_rect, canvas_rect)
	    && (!eel_irect_hits_irect (details->text_rect, canvas_rect))
	    && (!eel_irect_hits_irect (details->emblem_rect, canvas_rect))) {
		return FALSE;
	}

	/* Check for hits in the stretch handles. */
	if (hit_test_stretch_handle (icon_item, canvas_rect, NULL)) {
		return TRUE;
	}
	
	/* Check for hit in the icon. */
	if (eel_irect_hits_irect (icon_item->details->canvas_rect, canvas_rect)) {
		return TRUE;
	}

	/* Check for hit in the text. */
	if (eel_irect_hits_irect (details->text_rect, canvas_rect)
	    && !icon_item->details->is_renaming) {
		return TRUE;
	}

	is_rtl = credenza_icon_container_is_layout_rtl (CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (icon_item)->canvas));

	/* Check for hit in the emblem pixbufs. */
	emblem_layout_reset (&emblem_layout, icon_item, icon_item->details->canvas_rect, is_rtl);
	while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect, is_rtl)) {
		if (hit_test_pixbuf (emblem_pixbuf, emblem_rect, canvas_rect)) {
			return TRUE;
		}	
	}
	
	return FALSE;
}

/* Point handler for the icon canvas item. */
static double
credenza_icon_canvas_item_point (EelCanvasItem *item, double x, double y, int cx, int cy,
				 EelCanvasItem **actual_item)
{
	EelIRect canvas_rect;

	*actual_item = item;
	canvas_rect.x0 = cx;
	canvas_rect.y0 = cy;
	canvas_rect.x1 = cx + 1;
	canvas_rect.y1 = cy + 1;
	if (hit_test (CREDENZA_ICON_CANVAS_ITEM (item), canvas_rect)) {
		return 0.0;
	} else {
		/* This value means not hit.
		 * It's kind of arbitrary. Can we do better?
		 */
		return item->canvas->pixels_per_unit * 2 + 10;
	}
}

static void
credenza_icon_canvas_item_translate (EelCanvasItem *item, double dx, double dy)
{
	CredenzaIconCanvasItem *icon_item;
	CredenzaIconCanvasItemDetails *details;
	
	icon_item = CREDENZA_ICON_CANVAS_ITEM (item);
	details = icon_item->details;

	details->x += dx;
	details->y += dy;
}

void
credenza_icon_canvas_item_get_bounds_for_layout (CredenzaIconCanvasItem *icon_item,
						 double *x1, double *y1, double *x2, double *y2)
{
	CredenzaIconCanvasItemDetails *details;
	EelIRect *total_rect;

	details = icon_item->details;

	credenza_icon_canvas_item_ensure_bounds_up_to_date (icon_item);
	g_assert (details->bounds_cached);

	total_rect = &details->bounds_cache_for_layout;

	/* Return the result. */
	if (x1 != NULL) {
		*x1 = (int)details->x + total_rect->x0;
	}
	if (y1 != NULL) {
		*y1 = (int)details->y + total_rect->y0;
	}
	if (x2 != NULL) {
		*x2 = (int)details->x + total_rect->x1 + 1;
	}
	if (y2 != NULL) {
		*y2 = (int)details->y + total_rect->y1 + 1;
	}
}

void
credenza_icon_canvas_item_get_bounds_for_entire_item (CredenzaIconCanvasItem *icon_item,
						      double *x1, double *y1, double *x2, double *y2)
{
	CredenzaIconCanvasItemDetails *details;
	EelIRect *total_rect;

	details = icon_item->details;

	credenza_icon_canvas_item_ensure_bounds_up_to_date (icon_item);
	g_assert (details->bounds_cached);

	total_rect = &details->bounds_cache_for_entire_item;

	/* Return the result. */
	if (x1 != NULL) {
		*x1 = (int)details->x + total_rect->x0;
	}
	if (y1 != NULL) {
		*y1 = (int)details->y + total_rect->y0;
	}
	if (x2 != NULL) {
		*x2 = (int)details->x + total_rect->x1 + 1;
	}
	if (y2 != NULL) {
		*y2 = (int)details->y + total_rect->y1 + 1;
	}
}
	
/* Bounds handler for the icon canvas item. */
static void
credenza_icon_canvas_item_bounds (EelCanvasItem *item,
				  double *x1, double *y1, double *x2, double *y2)
{
	CredenzaIconCanvasItem *icon_item;
	CredenzaIconCanvasItemDetails *details;
	EelIRect *total_rect;

	icon_item = CREDENZA_ICON_CANVAS_ITEM (item);
	details = icon_item->details;

	g_assert (x1 != NULL);
	g_assert (y1 != NULL);
	g_assert (x2 != NULL);
	g_assert (y2 != NULL);

	credenza_icon_canvas_item_ensure_bounds_up_to_date (icon_item);
	g_assert (details->bounds_cached);

	total_rect = &details->bounds_cache;

	/* Return the result. */
	*x1 = (int)details->x + total_rect->x0;
	*y1 = (int)details->y + total_rect->y0;
	*x2 = (int)details->x + total_rect->x1 + 1;
	*y2 = (int)details->y + total_rect->y1 + 1;
}

static void
credenza_icon_canvas_item_ensure_bounds_up_to_date (CredenzaIconCanvasItem *icon_item)
{
	CredenzaIconCanvasItemDetails *details;
	EelIRect icon_rect, emblem_rect, icon_rect_raw;
	EelIRect text_rect, text_rect_for_layout, text_rect_for_entire_text;
	EelIRect total_rect, total_rect_for_layout, total_rect_for_entire_text;
	EelCanvasItem *item;
	double pixels_per_unit;
	EmblemLayout emblem_layout;
	GdkPixbuf *emblem_pixbuf;
	gboolean is_rtl;
	
	details = icon_item->details;
	item = EEL_CANVAS_ITEM (icon_item);

	if (!details->bounds_cached) {
		measure_label_text (icon_item);

		pixels_per_unit = EEL_CANVAS_ITEM (item)->canvas->pixels_per_unit;

		/* Compute raw and scaled icon rectangle. */
		icon_rect.x0 = 0;
		icon_rect.y0 = 0;
		icon_rect_raw.x0 = 0;
		icon_rect_raw.y0 = 0;
		if (details->pixbuf == NULL) {
			icon_rect.x1 = icon_rect.x0;
			icon_rect.y1 = icon_rect.y0;
			icon_rect_raw.x1 = icon_rect_raw.x0;
			icon_rect_raw.y1 = icon_rect_raw.y0;
		} else {
			icon_rect_raw.x1 = icon_rect_raw.x0 + gdk_pixbuf_get_width (details->pixbuf);
			icon_rect_raw.y1 = icon_rect_raw.y0 + gdk_pixbuf_get_height (details->pixbuf);
			icon_rect.x1 = icon_rect_raw.x1 / pixels_per_unit;
			icon_rect.y1 = icon_rect_raw.y1 / pixels_per_unit;
		}
		
		/* Compute text rectangle. */
		text_rect = compute_text_rectangle (icon_item, icon_rect, FALSE, BOUNDS_USAGE_FOR_DISPLAY);
		text_rect_for_layout = compute_text_rectangle (icon_item, icon_rect, FALSE, BOUNDS_USAGE_FOR_LAYOUT);
		text_rect_for_entire_text = compute_text_rectangle (icon_item, icon_rect, FALSE, BOUNDS_USAGE_FOR_ENTIRE_ITEM);
		
		is_rtl = credenza_icon_container_is_layout_rtl (CREDENZA_ICON_CONTAINER (item->canvas));

		/* Compute total rectangle, adding in emblem rectangles. */
		eel_irect_union (&total_rect, &icon_rect, &text_rect);
		eel_irect_union (&total_rect_for_layout, &icon_rect, &text_rect_for_layout);
		eel_irect_union (&total_rect_for_entire_text, &icon_rect, &text_rect_for_entire_text);
		emblem_layout_reset (&emblem_layout, icon_item, icon_rect_raw, is_rtl);
		while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect, is_rtl)) {
			emblem_rect.x0 = floor (emblem_rect.x0 / pixels_per_unit);
			emblem_rect.y0 = floor (emblem_rect.y0 / pixels_per_unit);
			emblem_rect.x1 = ceil (emblem_rect.x1 / pixels_per_unit);
			emblem_rect.y1 = ceil (emblem_rect.y1 / pixels_per_unit);

			eel_irect_union (&total_rect, &total_rect, &emblem_rect);
			eel_irect_union (&total_rect_for_layout, &total_rect_for_layout, &emblem_rect);
			eel_irect_union (&total_rect_for_entire_text, &total_rect_for_entire_text, &emblem_rect);
		}

		details->bounds_cache = total_rect;
		details->bounds_cache_for_layout = total_rect_for_layout;
		details->bounds_cache_for_entire_item = total_rect_for_entire_text;
		details->bounds_cached = TRUE;
	}
}

/* Get the rectangle of the icon only, in world coordinates. */
EelDRect
credenza_icon_canvas_item_get_icon_rectangle (const CredenzaIconCanvasItem *item)
{
	EelDRect rectangle;
	double pixels_per_unit;
	GdkPixbuf *pixbuf;
	
	g_return_val_if_fail (CREDENZA_IS_ICON_CANVAS_ITEM (item), eel_drect_empty);

	rectangle.x0 = item->details->x;
	rectangle.y0 = item->details->y;
	
	pixbuf = item->details->pixbuf;
	
	pixels_per_unit = EEL_CANVAS_ITEM (item)->canvas->pixels_per_unit;
	rectangle.x1 = rectangle.x0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_width (pixbuf)) / pixels_per_unit;
	rectangle.y1 = rectangle.y0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_height (pixbuf)) / pixels_per_unit;

	eel_canvas_item_i2w (EEL_CANVAS_ITEM (item),
			     &rectangle.x0,
			     &rectangle.y0);
	eel_canvas_item_i2w (EEL_CANVAS_ITEM (item),
			     &rectangle.x1,
			     &rectangle.y1);

	return rectangle;
}

EelDRect
credenza_icon_canvas_item_get_text_rectangle (CredenzaIconCanvasItem *item,
					      gboolean for_layout)
{
	/* FIXME */
	EelIRect icon_rectangle;
	EelIRect text_rectangle;
	EelDRect ret;
	double pixels_per_unit;
	GdkPixbuf *pixbuf;
	
	g_return_val_if_fail (CREDENZA_IS_ICON_CANVAS_ITEM (item), eel_drect_empty);

	icon_rectangle.x0 = item->details->x;
	icon_rectangle.y0 = item->details->y;
	
	pixbuf = item->details->pixbuf;
	
	pixels_per_unit = EEL_CANVAS_ITEM (item)->canvas->pixels_per_unit;
	icon_rectangle.x1 = icon_rectangle.x0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_width (pixbuf)) / pixels_per_unit;
	icon_rectangle.y1 = icon_rectangle.y0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_height (pixbuf)) / pixels_per_unit;

	measure_label_text (item);

	text_rectangle = compute_text_rectangle (item, icon_rectangle, FALSE,
						 for_layout ? BOUNDS_USAGE_FOR_LAYOUT : BOUNDS_USAGE_FOR_DISPLAY);
 
	ret.x0 = text_rectangle.x0;
	ret.y0 = text_rectangle.y0;
	ret.x1 = text_rectangle.x1;
	ret.y1 = text_rectangle.y1;

        eel_canvas_item_i2w (EEL_CANVAS_ITEM (item),
                             &ret.x0,
                             &ret.y0);
        eel_canvas_item_i2w (EEL_CANVAS_ITEM (item),
                             &ret.x1,
                             &ret.y1);
 
        return ret;
}


/* Get the rectangle of the icon only, in canvas coordinates. */
static void
get_icon_canvas_rectangle (CredenzaIconCanvasItem *item,
			   EelIRect *rect)
{
	GdkPixbuf *pixbuf;

	g_assert (CREDENZA_IS_ICON_CANVAS_ITEM (item));
	g_assert (rect != NULL);

	eel_canvas_w2c (EEL_CANVAS_ITEM (item)->canvas,
			item->details->x,
			item->details->y,
			&rect->x0,
			&rect->y0);
	
	pixbuf = item->details->pixbuf;
	
	rect->x1 = rect->x0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_width (pixbuf));
	rect->y1 = rect->y0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_height (pixbuf));
}

void
credenza_icon_canvas_item_set_show_stretch_handles (CredenzaIconCanvasItem *item,
						    gboolean show_stretch_handles)
{
	g_return_if_fail (CREDENZA_IS_ICON_CANVAS_ITEM (item));
	g_return_if_fail (show_stretch_handles == FALSE || show_stretch_handles == TRUE);
	
	if (!item->details->show_stretch_handles == !show_stretch_handles) {
		return;
	}

	item->details->show_stretch_handles = show_stretch_handles;
	eel_canvas_item_request_update (EEL_CANVAS_ITEM (item));
}

/* Check if one of the stretch handles was hit. */
static gboolean
hit_test_stretch_handle (CredenzaIconCanvasItem *item,
			 EelIRect probe_canvas_rect,
			 GtkCornerType *corner)
{
	EelIRect icon_rect;
	GdkPixbuf *knob_pixbuf;
	int knob_width, knob_height;
	int hit_corner;
	
	g_assert (CREDENZA_IS_ICON_CANVAS_ITEM (item));

	/* Make sure there are handles to hit. */
	if (!item->details->show_stretch_handles) {
		return FALSE;
	}

	/* Quick check to see if the rect hits the icon at all. */
	icon_rect = item->details->canvas_rect;
	if (!eel_irect_hits_irect (probe_canvas_rect, icon_rect)) {
		return FALSE;
	}
	
	knob_pixbuf = get_knob_pixbuf ();
	knob_width = gdk_pixbuf_get_width (knob_pixbuf);
	knob_height = gdk_pixbuf_get_height (knob_pixbuf);
	g_object_unref (knob_pixbuf);

	/* Check for hits in the stretch handles. */
	hit_corner = -1;
	if (probe_canvas_rect.x0 < icon_rect.x0 + knob_width) {
		if (probe_canvas_rect.y0 < icon_rect.y0 + knob_height)
			hit_corner = GTK_CORNER_TOP_LEFT;
		else if (probe_canvas_rect.y1 >= icon_rect.y1 - knob_height)
			hit_corner = GTK_CORNER_BOTTOM_LEFT;
	}
	else if (probe_canvas_rect.x1 >= icon_rect.x1 - knob_width) {
		if (probe_canvas_rect.y0 < icon_rect.y0 + knob_height)
			hit_corner = GTK_CORNER_TOP_RIGHT;
		else if (probe_canvas_rect.y1 >= icon_rect.y1 - knob_height)
			hit_corner = GTK_CORNER_BOTTOM_RIGHT;
	}
	if (corner)
		*corner = hit_corner;

	return hit_corner != -1;
}

gboolean
credenza_icon_canvas_item_hit_test_stretch_handles (CredenzaIconCanvasItem *item,
						    EelDPoint world_point,
						    GtkCornerType *corner)
{
	EelIRect canvas_rect;

	g_return_val_if_fail (CREDENZA_IS_ICON_CANVAS_ITEM (item), FALSE);
	
	eel_canvas_w2c (EEL_CANVAS_ITEM (item)->canvas,
			  world_point.x,
			  world_point.y,
			  &canvas_rect.x0,
			  &canvas_rect.y0);
	canvas_rect.x1 = canvas_rect.x0 + 1;
	canvas_rect.y1 = canvas_rect.y0 + 1;
	return hit_test_stretch_handle (item, canvas_rect, corner);
}

/* credenza_icon_canvas_item_hit_test_rectangle
 *
 * Check and see if there is an intersection between the item and the
 * canvas rect.
 */
gboolean
credenza_icon_canvas_item_hit_test_rectangle (CredenzaIconCanvasItem *item, EelIRect canvas_rect)
{
	g_return_val_if_fail (CREDENZA_IS_ICON_CANVAS_ITEM (item), FALSE);

	return hit_test (item, canvas_rect);
}

const char *
credenza_icon_canvas_item_get_editable_text (CredenzaIconCanvasItem *icon_item)
{
	g_return_val_if_fail (CREDENZA_IS_ICON_CANVAS_ITEM (icon_item), NULL);

	return icon_item->details->editable_text;
}

void
credenza_icon_canvas_item_set_renaming (CredenzaIconCanvasItem *item, gboolean state)
{
	g_return_if_fail (CREDENZA_IS_ICON_CANVAS_ITEM (item));
	g_return_if_fail (state == FALSE || state == TRUE);

	if (!item->details->is_renaming == !state) {
		return;
	}

	item->details->is_renaming = state;
	eel_canvas_item_request_update (EEL_CANVAS_ITEM (item));
}

double
credenza_icon_canvas_item_get_max_text_width (CredenzaIconCanvasItem *item)
{
	EelCanvasItem *canvas_item;
	CredenzaIconContainer *container;

	canvas_item = EEL_CANVAS_ITEM (item);
	container = CREDENZA_ICON_CONTAINER (canvas_item->canvas);

	if (credenza_icon_container_is_tighter_layout (container)) {
		return MAX_TEXT_WIDTH_TIGHTER * canvas_item->canvas->pixels_per_unit;
	} else {
				
                if (container->details->label_position == CREDENZA_ICON_LABEL_POSITION_BESIDE) {
			if (container->details->layout_mode == CREDENZA_ICON_LAYOUT_T_B_L_R ||
			    container->details->layout_mode == CREDENZA_ICON_LAYOUT_T_B_R_L) {
				if (container->details->all_columns_same_width) {
					return MAX_TEXT_WIDTH_BESIDE_TOP_TO_BOTTOM * canvas_item->canvas->pixels_per_unit;
				} else {
					return -1;
				}
			} else {
				return MAX_TEXT_WIDTH_BESIDE * canvas_item->canvas->pixels_per_unit;
			}
                } else {
			return MAX_TEXT_WIDTH_STANDARD * canvas_item->canvas->pixels_per_unit;
                }


	}

}

/* CredenzaIconCanvasItemAccessible */

static CredenzaIconCanvasItemAccessiblePrivate *
accessible_get_priv (AtkObject *accessible)
{
        CredenzaIconCanvasItemAccessiblePrivate *priv;

        priv = g_object_get_qdata (G_OBJECT (accessible),
                                   accessible_private_data_quark);

        return priv;
}

/* AtkAction interface */

static gboolean
credenza_icon_canvas_item_accessible_idle_do_action (gpointer data)
{
	CredenzaIconCanvasItem *item;
	CredenzaIconCanvasItemAccessibleActionContext *ctx;
	CredenzaIcon *icon;
	CredenzaIconContainer *container;
	GList* selection;
	GList file_list;
        GdkEventButton button_event = { 0 };
	gint action_number;

	container = CREDENZA_ICON_CONTAINER (data);
	container->details->a11y_item_action_idle_handler = 0;
	while (!g_queue_is_empty (container->details->a11y_item_action_queue)) {
		ctx = g_queue_pop_head (container->details->a11y_item_action_queue);
		action_number = ctx->action_number;	
		item = ctx->item;
		g_free (ctx);
		icon = item->user_data;

		switch (action_number) {
		case ACTION_OPEN:
			file_list.data = icon->data;
			file_list.next = NULL;
			file_list.prev = NULL;
        		g_signal_emit_by_name (container, "activate", &file_list);
			break;
		case ACTION_MENU:
			selection = credenza_icon_container_get_selection (container);
			if (selection == NULL ||
			    g_list_length (selection) != 1 ||
 			    selection->data != icon->data)  {
				g_list_free (selection);
				return FALSE;
			}
			g_list_free (selection);
        		g_signal_emit_by_name (container, "context_click_selection", &button_event);
			break;
		default :
			g_assert_not_reached ();
			break;
		}
	}
	return FALSE;
}

static gboolean
credenza_icon_canvas_item_accessible_do_action (AtkAction *accessible, int i)
{
	CredenzaIconCanvasItem *item;
	CredenzaIconCanvasItemAccessibleActionContext *ctx;
	CredenzaIcon *icon;
	CredenzaIconContainer *container;

	g_assert (i < LAST_ACTION);

	item = eel_accessibility_get_gobject (ATK_OBJECT (accessible));
	if (!item) {
		return FALSE;
	}
	icon = item->user_data;
	container = CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas);
	switch (i) {
	case ACTION_OPEN:
	case ACTION_MENU:
		if (container->details->a11y_item_action_queue == NULL) {
			container->details->a11y_item_action_queue = g_queue_new ();
		}
		ctx = g_new (CredenzaIconCanvasItemAccessibleActionContext, 1);
		ctx->action_number = i;
		ctx->item = item;
		g_queue_push_head (container->details->a11y_item_action_queue, ctx);
		if (container->details->a11y_item_action_idle_handler == 0) {
			container->details->a11y_item_action_idle_handler = g_idle_add (credenza_icon_canvas_item_accessible_idle_do_action, container);
		}
		break;
        default :
                g_warning ("Invalid action passed to CredenzaIconCanvasItemAccessible::do_action");
                return FALSE;
        }

	return TRUE;
}

static int
credenza_icon_canvas_item_accessible_get_n_actions (AtkAction *accessible)
{
	return LAST_ACTION;
}

static const char *
credenza_icon_canvas_item_accessible_action_get_description (AtkAction *accessible,
                                                             int i)
{
	CredenzaIconCanvasItemAccessiblePrivate *priv;

	g_assert (i < LAST_ACTION);

	priv = accessible_get_priv (ATK_OBJECT (accessible));
	if (priv->action_descriptions[i]) {
		return priv->action_descriptions[i];
	} else {
		return credenza_icon_canvas_item_accessible_action_descriptions[i];
	}
}

static const char *
credenza_icon_canvas_item_accessible_action_get_name (AtkAction *accessible, int i)
{
	g_assert (i < LAST_ACTION);

	return credenza_icon_canvas_item_accessible_action_names[i];
}

static const char *
credenza_icon_canvas_item_accessible_action_get_keybinding (AtkAction *accessible,
                                                          int i)
{
	g_assert (i < LAST_ACTION);

	return NULL;
}

static gboolean
credenza_icon_canvas_item_accessible_action_set_description (AtkAction *accessible,
                                                           int i,
                                                           const char *description)
{
	CredenzaIconCanvasItemAccessiblePrivate *priv;

	g_assert (i < LAST_ACTION);

	priv = accessible_get_priv (ATK_OBJECT (accessible));

	if (priv->action_descriptions[i]) {
		g_free (priv->action_descriptions[i]);
	}
	priv->action_descriptions[i] = g_strdup (description);

	return TRUE;
}

static void
credenza_icon_canvas_item_accessible_action_interface_init (AtkActionIface *iface)
{
	iface->do_action = credenza_icon_canvas_item_accessible_do_action;
	iface->get_n_actions = credenza_icon_canvas_item_accessible_get_n_actions;
	iface->get_description = credenza_icon_canvas_item_accessible_action_get_description;
	iface->get_keybinding = credenza_icon_canvas_item_accessible_action_get_keybinding;
	iface->get_name = credenza_icon_canvas_item_accessible_action_get_name;
	iface->set_description = credenza_icon_canvas_item_accessible_action_set_description;
}

static G_CONST_RETURN gchar *
credenza_icon_canvas_item_accessible_get_name (AtkObject *accessible)
{
	CredenzaIconCanvasItem *item;

	if (accessible->name) {
		return accessible->name;
	}

	item = eel_accessibility_get_gobject (accessible);
	if (!item) {
		return NULL;
	}
	return item->details->editable_text;
}

static G_CONST_RETURN gchar*
credenza_icon_canvas_item_accessible_get_description (AtkObject *accessible)
{
	CredenzaIconCanvasItem *item;

	item = eel_accessibility_get_gobject (accessible);
	if (!item) {
		return NULL;
	}

	return item->details->additional_text;
}

static AtkObject *
credenza_icon_canvas_item_accessible_get_parent (AtkObject *accessible)
{
	CredenzaIconCanvasItem *item;
	
	item = eel_accessibility_get_gobject (accessible);
	if (!item) {
		return NULL;
	}

	return gtk_widget_get_accessible (GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas));
}

static int
credenza_icon_canvas_item_accessible_get_index_in_parent (AtkObject *accessible)
{
	CredenzaIconCanvasItem *item;
	CredenzaIconContainer *container;
	GList *l;
	CredenzaIcon *icon;
	int i;

	item = eel_accessibility_get_gobject (accessible);
	if (!item) {
		return -1;
	}
	
	container = CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas);
	
	l = container->details->icons;
	i = 0;
	while (l) {
		icon = l->data;
		
		if (icon->item == item) {
			return i;
		}
		
		i++;
		l = l->next;
	}

	return -1;
}

static AtkStateSet*
credenza_icon_canvas_item_accessible_ref_state_set (AtkObject *accessible)
{
	AtkStateSet *state_set;
	CredenzaIconCanvasItem *item;
	CredenzaIconContainer *container;
	CredenzaIcon *icon;
	GList *l;
	gboolean one_item_selected;

	state_set = ATK_OBJECT_CLASS (accessible_parent_class)->ref_state_set (accessible);

	item = eel_accessibility_get_gobject (accessible);
	if (!item) {
		atk_state_set_add_state (state_set, ATK_STATE_DEFUNCT);
		return state_set;
	}
	container = CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas);
	if (item->details->is_highlighted_as_keyboard_focus) {
		atk_state_set_add_state (state_set, ATK_STATE_FOCUSED);
	} else if (!container->details->keyboard_focus) {

		one_item_selected = FALSE;
		l = container->details->icons;
		while (l) {
			icon = l->data;
		
			if (icon->item == item) {
				if (icon->is_selected) {
					one_item_selected = TRUE;
				} else {
					break;
				}
			} else if (icon->is_selected) {
				one_item_selected = FALSE;
				break;
			}

			l = l->next;
		}

		if (one_item_selected) {
			atk_state_set_add_state (state_set, ATK_STATE_FOCUSED);
		}
	}

	return state_set;
}

static void
credenza_icon_canvas_item_accessible_initialize (AtkObject *accessible,
                                                 gpointer data)
{
        CredenzaIconCanvasItemAccessiblePrivate *priv;

        if (ATK_OBJECT_CLASS (accessible_parent_class)->initialize) {
                ATK_OBJECT_CLASS (accessible_parent_class)->initialize (accessible, data);
        }

        priv = g_new0 (CredenzaIconCanvasItemAccessiblePrivate, 1);
        g_object_set_qdata (G_OBJECT (accessible),
                            accessible_private_data_quark,
                            priv);
}

static void
credenza_icon_canvas_item_accessible_finalize (GObject *object)
{
	CredenzaIconCanvasItemAccessiblePrivate *priv;
	int i;

	priv = accessible_get_priv (ATK_OBJECT (object));

	for (i = 0; i < LAST_ACTION; i++) {
		g_free (priv->action_descriptions[i]);
	}
	g_free (priv->image_description);
	g_free (priv->description);

        g_free (priv);

        G_OBJECT_CLASS (accessible_parent_class)->finalize (object);
}

static void
credenza_icon_canvas_item_accessible_class_init (AtkObjectClass *klass)
{
	GObjectClass *gobject_class = G_OBJECT_CLASS (klass);

	accessible_parent_class = g_type_class_peek_parent (klass);

	gobject_class->finalize = credenza_icon_canvas_item_accessible_finalize;

	klass->get_name = credenza_icon_canvas_item_accessible_get_name;
	klass->get_description = credenza_icon_canvas_item_accessible_get_description;
	klass->get_parent = credenza_icon_canvas_item_accessible_get_parent;
	klass->get_index_in_parent = credenza_icon_canvas_item_accessible_get_index_in_parent;
	klass->ref_state_set = credenza_icon_canvas_item_accessible_ref_state_set;
	klass->initialize = credenza_icon_canvas_item_accessible_initialize;
	accessible_private_data_quark = g_quark_from_static_string ("icon-canvas-item-accessible-private-data");
}


static G_CONST_RETURN gchar * 
credenza_icon_canvas_item_accessible_get_image_description
	(AtkImage *image)
{
	CredenzaIconCanvasItemAccessiblePrivate *priv;
	CredenzaIconCanvasItem *item;
	CredenzaIcon *icon;
	CredenzaIconContainer *container;
	char *description;

	priv = accessible_get_priv (ATK_OBJECT (image));
	if (priv->image_description) {
		return priv->image_description;
	} else {
		item = eel_accessibility_get_gobject (ATK_OBJECT (image));
		if (item == NULL) {
			return NULL;
		}
		icon = item->user_data;
		container = CREDENZA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas);
		description = credenza_icon_container_get_icon_description (container, icon->data);
		g_free (priv->description);
		priv->description = description;
		return priv->description;
	}
}

static void
credenza_icon_canvas_item_accessible_get_image_size
	(AtkImage *image, 
	 gint     *width,
	 gint     *height)
{
	CredenzaIconCanvasItem *item;

	item = eel_accessibility_get_gobject (ATK_OBJECT (image));

	if (!item || !item->details->pixbuf) {
		*width = *height = 0;
	} else {
		*width = gdk_pixbuf_get_width (item->details->pixbuf);
		*height = gdk_pixbuf_get_height (item->details->pixbuf);
	}
}

static void
credenza_icon_canvas_item_accessible_get_image_position
	(AtkImage		 *image,
	 gint                    *x,
	 gint	                 *y,
	 AtkCoordType	         coord_type)
{
	CredenzaIconCanvasItem *item;
	gint x_offset, y_offset, itmp;

	item = eel_accessibility_get_gobject (ATK_OBJECT (image));
	if (!item) {
		return;
	}
	if (!item->details->canvas_rect.x0 && !item->details->canvas_rect.x1) {
		return;
	} else {
		x_offset = 0;
		y_offset = 0;
		if (item->details->text_width) {
			itmp = item->details->canvas_rect.x0 -
			       item->details->text_rect.x0;
			if (itmp > x_offset) {
				x_offset = itmp;
			}
			itmp = item->details->canvas_rect.y0 -
			       item->details->text_rect.y0;
			if (itmp > y_offset) {
				y_offset = itmp;
			}
		}
		if (item->details->emblem_pixbufs) {
			itmp = item->details->canvas_rect.x0 -
			       item->details->emblem_rect.x0;
			if (itmp > x_offset) {
				x_offset = itmp;
			}
			itmp = item->details->canvas_rect.y0 -
			       item->details->emblem_rect.y0;
			if (itmp > y_offset) {
				y_offset = itmp;
			}
		}
	}
	atk_component_get_position (ATK_COMPONENT (image), x, y, coord_type);
	*x += x_offset;
	*y += y_offset;
}

static gboolean
credenza_icon_canvas_item_accessible_set_image_description
	(AtkImage    *image,
	 const gchar *description)
{
	CredenzaIconCanvasItemAccessiblePrivate *priv;

	priv = accessible_get_priv (ATK_OBJECT (image));

	g_free (priv->image_description);
	priv->image_description = g_strdup (description);

	return TRUE;
}

static void
credenza_icon_canvas_item_accessible_image_interface_init (AtkImageIface *iface)
{
	iface->get_image_description = credenza_icon_canvas_item_accessible_get_image_description;
	iface->set_image_description = credenza_icon_canvas_item_accessible_set_image_description;
	iface->get_image_size        = credenza_icon_canvas_item_accessible_get_image_size;
	iface->get_image_position    = credenza_icon_canvas_item_accessible_get_image_position;
}

static gint
credenza_icon_canvas_item_accessible_get_offset_at_point (AtkText	 *text,
                                                          gint           x,
                                                          gint           y,
                                                          AtkCoordType coords)
{
	gint real_x, real_y, real_width, real_height;
	CredenzaIconCanvasItem *item;
	gint editable_height;
	gint offset = 0;
	gint index;
	PangoLayout *layout, *editable_layout, *additional_layout;
	PangoRectangle rect0;
	char *icon_text;
	gboolean have_editable;
	gboolean have_additional;
	gint text_offset;

	atk_component_get_extents (ATK_COMPONENT (text), &real_x, &real_y,
                                   &real_width, &real_height, coords);

	x -= real_x;
	y -= real_y; 

	item = eel_accessibility_get_gobject (ATK_OBJECT (text));

	if (item->details->pixbuf) {
		y -= gdk_pixbuf_get_height (item->details->pixbuf);
	}
	have_editable = item->details->editable_text != NULL &&
			item->details->editable_text[0] != '\0';
	have_additional = item->details->additional_text != NULL &&item->details->additional_text[0] != '\0';

	editable_layout = NULL;
	additional_layout = NULL;
	if (have_editable) {
		editable_layout = get_label_layout (&item->details->editable_text_layout, item, item->details->editable_text);
		prepare_pango_layout_for_draw (item, editable_layout);
		pango_layout_get_pixel_size (editable_layout, NULL, &editable_height);
		if (y >= editable_height &&
                    have_additional) {
			prepare_pango_layout_for_draw (item, editable_layout);
			additional_layout = get_label_layout (&item->details->additional_text_layout, item, item->details->additional_text);
			layout = additional_layout;
			icon_text = item->details->additional_text;
			y -= editable_height + LABEL_LINE_SPACING;
		} else {
			layout = editable_layout;
			icon_text = item->details->editable_text;
		}
	} else if (have_additional) {
		additional_layout = get_label_layout (&item->details->additional_text_layout, item, item->details->additional_text);
		prepare_pango_layout_for_draw (item, additional_layout);
		layout = additional_layout;
		icon_text = item->details->additional_text;
	} else {
		return 0;
	}

	text_offset = 0;
	if (have_editable) {
		pango_layout_index_to_pos (editable_layout, 0, &rect0);
		text_offset = PANGO_PIXELS (rect0.x);
	}
	if (have_additional) {
		gint itmp;

		pango_layout_index_to_pos (additional_layout, 0, &rect0);
		itmp = PANGO_PIXELS (rect0.x);
		if (itmp < text_offset) {
			text_offset = itmp;
		}
	}
	pango_layout_index_to_pos (layout, 0, &rect0);
	x += text_offset;
	if (!pango_layout_xy_to_index (layout, 
                                       x * PANGO_SCALE, 
                                       y * PANGO_SCALE, 
                                       &index, NULL)) {
		if (x < 0 || y < 0) {
			index = 0;
		} else {
			index = -1;
		}
	}
	if (index == -1) {
		offset = g_utf8_strlen (icon_text, -1);
	} else {
		offset = g_utf8_pointer_to_offset (icon_text, icon_text + index);
	}
	if (layout == additional_layout) {
		offset += g_utf8_strlen (item->details->editable_text, -1);	
	}

	if (editable_layout != NULL) {
		g_object_unref (editable_layout);
	}
	
	if (additional_layout != NULL) {
		g_object_unref (additional_layout);
	}
	
	return offset;
}

static void
credenza_icon_canvas_item_accessible_get_character_extents (AtkText	   *text,
                                                            gint	   offset,
                                                            gint	   *x,
                                                            gint	   *y,
                                                            gint	   *width,
                                                            gint	   *height,
                                                            AtkCoordType coords)
{
	gint pos_x, pos_y;
	gint len, byte_offset;
	gint editable_height;
	gchar *icon_text;
	CredenzaIconCanvasItem *item;
	PangoLayout *layout, *editable_layout, *additional_layout;
	PangoRectangle rect;
	PangoRectangle rect0;
	gboolean have_editable;
	gint text_offset;

	atk_component_get_position (ATK_COMPONENT (text), &pos_x, &pos_y, coords);
	item = eel_accessibility_get_gobject (ATK_OBJECT (text));

	if (item->details->pixbuf) {
		pos_y += gdk_pixbuf_get_height (item->details->pixbuf);
	}

	have_editable = item->details->editable_text != NULL &&
			item->details->editable_text[0] != '\0';
	if (have_editable) {
		len = g_utf8_strlen (item->details->editable_text, -1);
	} else {
		len = 0;
	}

	editable_layout = get_label_layout (&item->details->editable_text_layout, item, item->details->editable_text);
	additional_layout = get_label_layout (&item->details->additional_text_layout, item, item->details->additional_text);
	
	if (offset < len) {
		icon_text = item->details->editable_text;
		layout = editable_layout;
	} else {
		offset -= len;
		icon_text = item->details->additional_text;
		layout = additional_layout;
		pos_y += LABEL_LINE_SPACING;
		if (have_editable) {
			pango_layout_get_pixel_size (editable_layout, NULL, &editable_height);
			pos_y += editable_height;
		}
	}
	byte_offset = g_utf8_offset_to_pointer (icon_text, offset) - icon_text;
	pango_layout_index_to_pos (layout, byte_offset, &rect);
	text_offset = 0;
	if (have_editable) {
		pango_layout_index_to_pos (editable_layout, 0, &rect0);
		text_offset = PANGO_PIXELS (rect0.x);
	}
	if (item->details->additional_text != NULL &&
	    item->details->additional_text[0] != '\0') {
		gint itmp;

		pango_layout_index_to_pos (additional_layout, 0, &rect0);
		itmp = PANGO_PIXELS (rect0.x);
		if (itmp < text_offset) {
			text_offset = itmp;
		}
	}

	g_object_unref (editable_layout);
	g_object_unref (additional_layout);

	*x = pos_x + PANGO_PIXELS (rect.x) - text_offset;
	*y = pos_y + PANGO_PIXELS (rect.y);
	*width = PANGO_PIXELS (rect.width);
	*height = PANGO_PIXELS (rect.height);
}

static void
credenza_icon_canvas_item_accessible_text_interface_init (AtkTextIface *iface)
{
 	iface->get_text                = eel_accessibility_text_get_text;
	iface->get_character_at_offset = eel_accessibility_text_get_character_at_offset;
        iface->get_text_before_offset  = eel_accessibility_text_get_text_before_offset;
        iface->get_text_at_offset      = eel_accessibility_text_get_text_at_offset;
   	iface->get_text_after_offset   = eel_accessibility_text_get_text_after_offset;
      	iface->get_character_count     = eel_accessibility_text_get_character_count;
	iface->get_character_extents   = credenza_icon_canvas_item_accessible_get_character_extents;
	iface->get_offset_at_point     = credenza_icon_canvas_item_accessible_get_offset_at_point;
}

static GType
credenza_icon_canvas_item_accessible_get_type (void)
{
	static GType type = 0;

	if (!type) {
		const GInterfaceInfo atk_image_info = {
			(GInterfaceInitFunc)
			credenza_icon_canvas_item_accessible_image_interface_init,
			(GInterfaceFinalizeFunc) NULL,
			NULL
		};

		const GInterfaceInfo atk_text_info = {
			(GInterfaceInitFunc)
			credenza_icon_canvas_item_accessible_text_interface_init,
			(GInterfaceFinalizeFunc) NULL,
			NULL
		};

		const GInterfaceInfo atk_action_info = {
			(GInterfaceInitFunc)
			credenza_icon_canvas_item_accessible_action_interface_init,
			(GInterfaceFinalizeFunc) NULL,
			NULL
		};

		type = eel_accessibility_create_derived_type (
			"CredenzaIconCanvasItemAccessibility",
			EEL_TYPE_CANVAS_ITEM,
			credenza_icon_canvas_item_accessible_class_init);

		if (type != G_TYPE_INVALID) {
			g_type_add_interface_static (
				type, ATK_TYPE_IMAGE, &atk_image_info);

			g_type_add_interface_static (
				type, ATK_TYPE_TEXT, &atk_text_info);

			g_type_add_interface_static (
				type, ATK_TYPE_ACTION, &atk_action_info);

		}
	}

	return type;
}

static AtkObject *
credenza_icon_canvas_item_accessible_create (GObject *for_object)
{
	GType type;
	AtkObject *accessible;
	CredenzaIconCanvasItem *item;
	GString *item_text;

	item = CREDENZA_ICON_CANVAS_ITEM (for_object);
	g_assert (item != NULL);

	type = credenza_icon_canvas_item_accessible_get_type ();

	if (type == G_TYPE_INVALID) {
		return atk_no_op_object_new (for_object);
	}

	item_text = g_string_new (NULL);
	if (item->details->editable_text) {
        	g_string_append (item_text, item->details->editable_text);
	}
	if (item->details->additional_text) {
        	g_string_append (item_text, item->details->additional_text);
	}
	item->details->text_util = gail_text_util_new ();
	gail_text_util_text_setup (item->details->text_util,
				   item_text->str);
	g_string_free (item_text, TRUE);

	accessible = g_object_new (type, NULL);
	accessible = eel_accessibility_set_atk_object_return
		(for_object, accessible);
	atk_object_set_role (accessible, ATK_ROLE_ICON);
	return accessible;
}

EEL_ACCESSIBLE_FACTORY (credenza_icon_canvas_item_accessible_get_type (),
			"CredenzaIconCanvasItemAccessibilityFactory",
			credenza_icon_canvas_item_accessible,
			credenza_icon_canvas_item_accessible_create)


static GailTextUtil *
credenza_icon_canvas_item_get_text (GObject *text)
{
	return CREDENZA_ICON_CANVAS_ITEM (text)->details->text_util;
}

static void
credenza_icon_canvas_item_text_interface_init (EelAccessibleTextIface *iface)
{
	iface->get_text = credenza_icon_canvas_item_get_text;
}

void
credenza_icon_canvas_item_set_entire_text (CredenzaIconCanvasItem       *item,
					   gboolean                      entire_text)
{
	if (item->details->entire_text != entire_text) {
		item->details->entire_text = entire_text;

		credenza_icon_canvas_item_invalidate_label_size (item);
		eel_canvas_item_request_update (EEL_CANVAS_ITEM (item));
	}
}


/* Class initialization function for the icon canvas item. */
static void
credenza_icon_canvas_item_class_init (CredenzaIconCanvasItemClass *class)
{
	GObjectClass *object_class;
	EelCanvasItemClass *item_class;

	object_class = G_OBJECT_CLASS (class);
	item_class = EEL_CANVAS_ITEM_CLASS (class);

	object_class->finalize = credenza_icon_canvas_item_finalize;
	object_class->set_property = credenza_icon_canvas_item_set_property;
	object_class->get_property = credenza_icon_canvas_item_get_property;

        g_object_class_install_property (
		object_class,
		PROP_EDITABLE_TEXT,
		g_param_spec_string ("editable_text",
				     "editable text",
				     "the editable label",
				     "", G_PARAM_READWRITE));

        g_object_class_install_property (
		object_class,
		PROP_ADDITIONAL_TEXT,
		g_param_spec_string ("additional_text",
				     "additional text",
				     "some more text",
				     "", G_PARAM_READWRITE));

        g_object_class_install_property (
		object_class,
		PROP_HIGHLIGHTED_FOR_SELECTION,
		g_param_spec_boolean ("highlighted_for_selection",
				      "highlighted for selection",
				      "whether we are highlighted for a selection",
				      FALSE, G_PARAM_READWRITE)); 

        g_object_class_install_property (
		object_class,
		PROP_HIGHLIGHTED_AS_KEYBOARD_FOCUS,
		g_param_spec_boolean ("highlighted_as_keyboard_focus",
				      "highlighted as keyboard focus",
				      "whether we are highlighted to render keyboard focus",
				      FALSE, G_PARAM_READWRITE)); 


        g_object_class_install_property (
		object_class,
		PROP_HIGHLIGHTED_FOR_DROP,
		g_param_spec_boolean ("highlighted_for_drop",
				      "highlighted for drop",
				      "whether we are highlighted for a D&D drop",
				      FALSE, G_PARAM_READWRITE));

	g_object_class_install_property (
		object_class,
		PROP_HIGHLIGHTED_FOR_CLIPBOARD,
		g_param_spec_boolean ("highlighted_for_clipboard",
				      "highlighted for clipboard",
				      "whether we are highlighted for a clipboard paste (after we have been cut)",
 				      FALSE, G_PARAM_READWRITE));

	item_class->update = credenza_icon_canvas_item_update;
	item_class->draw = credenza_icon_canvas_item_draw;
	item_class->point = credenza_icon_canvas_item_point;
	item_class->translate = credenza_icon_canvas_item_translate;
	item_class->bounds = credenza_icon_canvas_item_bounds;
	item_class->event = credenza_icon_canvas_item_event;	

	EEL_OBJECT_SET_FACTORY (CREDENZA_TYPE_ICON_CANVAS_ITEM,
				credenza_icon_canvas_item_accessible);

	g_type_class_add_private (class, sizeof (CredenzaIconCanvasItemDetails));
}


